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Cheng R, Wan Y, Mao X, Wan H, Liu F, Guo L, Zhang B. Regulating the defects of MIL-101(Cr) for the efficient and simultaneous determination of eleven plant growth regulators in fresh fruit juice. Food Chem 2024; 444:138666. [PMID: 38341916 DOI: 10.1016/j.foodchem.2024.138666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 02/01/2024] [Accepted: 02/02/2024] [Indexed: 02/13/2024]
Abstract
This work presents an efficient sorbent for plant growth regulators (PGRs) by regulating the defects of a metal-organic framework MIL-101(Cr). Using the regulated MIL-101(Cr), we developed a simple and effective method for the simultaneous determination of eleven PGRs in fresh fruit juice. The extraction conditions were optimized by an orthogonal array design. Under optimal conditions, the method showed a satisfactory limit of detection (0.1-1.2 ng/g), recovery rates (83.4-110.2 %), and precision (2.9-18.0 % for intra-day and 2.7-10.8 % for inter-day), as well as a greatly suppressed matrix effect. Notably, regulating the defects significantly enhanced the desorption of PGRs on MIL-101(Cr). The sorbent didn't need to be destroyed to release the adsorbed PGRs and could be reused at least 6 times. Furthermore, the defects of MIL-101(Cr) and interactions between the sorbent and PGRs were studied by TGA, ATR-IR, XPS, NH3-TPD and UV-Vis DRS.
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Affiliation(s)
- Rui Cheng
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, People's Republic of China
| | - Yiqun Wan
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, People's Republic of China; State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, People's Republic of China; Jiangxi Province Key Laboratory of Modern Analytical Science, Nanchang University, Nanchang 330031, People's Republic of China.
| | - Xuejin Mao
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, People's Republic of China.
| | - Hao Wan
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, People's Republic of China
| | - Fan Liu
- Jiangxi Province Key Laboratory of Modern Analytical Science, Nanchang University, Nanchang 330031, People's Republic of China
| | - Lan Guo
- Jiangxi Province Key Laboratory of Modern Analytical Science, Nanchang University, Nanchang 330031, People's Republic of China
| | - Bingzhen Zhang
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, People's Republic of China
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2
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Liu LZ, Zhou R, Li YL, Pang YH, Shen XF, Liu J. Covalent organic framework-sodium alginate-Ca 2+-polyacrylic acid composite beads for convenient dispersive solid-phase extraction of neonicotinoid insecticides in fruit and vegetables. Food Chem 2024; 441:138357. [PMID: 38199109 DOI: 10.1016/j.foodchem.2024.138357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/23/2023] [Accepted: 01/01/2024] [Indexed: 01/12/2024]
Abstract
Neonicotinoids, the fastest-growing class of insecticides, have posed a multi-media residue problem with adverse effects on environment, biodiversity and human health. Herein, covalent organic framework-sodium alginate-Ca2+-polyacrylic acid composite beads (CACPs), facilely prepared at room temperature, were used in convenient dispersive solid-phase extraction (dSPE) and combined with high-performance liquid chromatography (HPLC) for the detection of five neonicotinoid insecticides (thiamethoxam, acetamiprid, dinotefuran, clothianidin, imidacloprid). CACPs can be completely separated within 1 min without centrifugation. After seven adsorption/desorption cycles, it maintained high extraction efficiencies (>90%). The developed method exhibited a wide linear range (0.01 ∼ 10 μg mL-1), low limits of detection (LODs, 0.0028 ∼ 0.0031 mg kg-1), and good repeatability (RSD ≤ 8.11%, n = 3). Moreover, it was applied to the determination of five neonicotinoids in fruit and vegetables (peach, pear, lettuce, cucumber, tomato), and recoveries ranged from 73.6% to 116.2%.
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Affiliation(s)
- Ling-Zhi Liu
- State Key Laboratory of Food Science and Resources, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi 214122, China
| | - Rui Zhou
- State Key Laboratory of Food Science and Resources, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi 214122, China
| | - Yong-Li Li
- Technology Center of Chengdu Customs, Chengdu 610041, China
| | - Yue-Hong Pang
- State Key Laboratory of Food Science and Resources, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China
| | - Xiao-Fang Shen
- State Key Laboratory of Food Science and Resources, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China.
| | - Jun Liu
- Technology Center of Chengdu Customs, Chengdu 610041, China.
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3
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Zhao H, Zhang X, Zuo L, Li L, Yang H, Zhang M, Wang N, Jia Q, Liu Y. A new methodology to reveal potential nucleic acid modifications associated with the risk of endometrial cancer through dispersive solid-phase extraction coupled with UHPLC-QE-Orbitrap-MS/MS and HPLC-UV. Anal Bioanal Chem 2024:10.1007/s00216-024-05206-y. [PMID: 38400939 DOI: 10.1007/s00216-024-05206-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 02/05/2024] [Accepted: 02/06/2024] [Indexed: 02/26/2024]
Abstract
Nucleic acid modifications have attracted increasing attention in recent years since they have been found to be related to a number of diseases including cancer. Previous studies have shown that the early development of endometrial cancer (EC) is often accompanied by changes in methylation levels of related genes, and the expression of related proteins that regulate reactive oxygen species (ROS) shows significant differences in EC cells and tissues. However, it has not been reported whether nucleic acid modifications related to methylation or ROS can serve as biomarkers for EC. Accurate quantification of these nucleic acid modifications still has challenges because their amounts in urine are very low and the interferences in urine are complicated. In this study, a novel dispersive solid-phase extraction (DSPE) method based on chitosan-carbon nanotube-Al2O3 (CS-CNT-Al2O3) has been established for the analysis of 5-hydroxymethyluracil (5 mU), 5-methyl-2'-deoxycytidine (5-mdC), 5-hydroxymethyl-2'-deoxycytidine (5-hmdC), 5-formyl-2'-deoxycytidine (5-fdC), and 8-hydroxy-2'-deoxyguanosine (8-OHdG) in EC patient urine samples coupled with UHPLC-QE-Orbitrap-MS/MS and HPLC-UV. Firstly, the synthesis of the CS-CNT-Al2O3 nanocomposite was conducted by a sono-coprecipitation method and was characterized by scanning electron microscope (SEM), energy dispersive spectrometer (EDS), and Fourier transform infrared (FTIR). Under the optimal extraction conditions of DSPE, we successfully quantified 5 mU, 5-mdC, 5-hmdC, 5-fdC, and 8-OHdG in urine samples from 37 EC patients and 39 healthy controls. The results showed that there were significant differences in the levels of 5-mdC, 5-hmdC, 5-fdC, and 8-OHdG in EC patients compared to the healthy control group. The receiver operator characteristic (ROC) curve analysis was carried out to evaluate the potential of 5-mdC, 5-hmdC, 5-fdC, and 8-OHdG to distinguish EC patients from healthy volunteers. The area under the curve (AUC) for 5-mdC, 5-hmdC, 5-fdC, and 8-OHdG was 0.7412, 0.667, 0.8438, and 0.7981, respectively. It indicated that 5-mdC, 5-hmdC, 5-fdC, and 8-OHdG had certain potential in distinguishing between EC patients and healthy volunteers and they could act as potential non-invasive biomarkers for early diagnosis of EC. Moreover, the present study would stimulate investigations of the effects of nucleic acid modifications on the initiation and progression of EC.
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Affiliation(s)
- Huanhuan Zhao
- Department of Obstetrics and Gynecology, Fourth Hospital of Hebei Medical University, Shijiazhuang, 050011, Hebei Province, People's Republic of China
| | - Xiaoguang Zhang
- Core Facilities and Centers, Hebei Medical University, Shijiazhuang, 050017, Hebei Province, People's Republic of China
| | - Lujie Zuo
- College of Pharmacy, Hebei Medical University, Shijiazhuang, 050017, Hebei Province, People's Republic of China
| | - Li Li
- Department of Obstetrics and Gynecology, Fourth Hospital of Hebei Medical University, Shijiazhuang, 050011, Hebei Province, People's Republic of China
| | - Hongfang Yang
- Department of Medical Laboratory, Fourth Hospital of Hebei Medical University, Shijiazhuang, 050011, Hebei Province, People's Republic of China
| | - Mengyu Zhang
- Department of Obstetrics and Gynecology, Fourth Hospital of Hebei Medical University, Shijiazhuang, 050011, Hebei Province, People's Republic of China
| | - Na Wang
- Department of Obstetrics and Gynecology, Fourth Hospital of Hebei Medical University, Shijiazhuang, 050011, Hebei Province, People's Republic of China
| | - Qingzhong Jia
- College of Pharmacy, Hebei Medical University, Shijiazhuang, 050017, Hebei Province, People's Republic of China.
| | - Yan Liu
- College of Pharmacy, Hebei Medical University, Shijiazhuang, 050017, Hebei Province, People's Republic of China.
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4
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Wang C, Liu H, Sun R, Wang J. Determination of glycidyl fatty acid esters in edible vegetable oils by HPLC-ESI-QQQ-MS/MS combined with cryo-degreasing tandem dispersive solid-phase extraction. Food Chem 2024; 432:137293. [PMID: 37657342 DOI: 10.1016/j.foodchem.2023.137293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 08/04/2023] [Accepted: 08/24/2023] [Indexed: 09/03/2023]
Abstract
Glycidyl fatty acid esters (GEs) have been identified as food contaminants that can form during the processing and heating of edible oils. Their widespread occurrence raises potential concerns for consumers. This study aimed to develop a simple and effective analytical method for molecular recognition using mass spectrometry fragmentation patterns. Furthermore, it sought to simultaneously and quantitatively determine five common GEs in highly complex fatty matrices (oils) using high-performance liquid chromatography-triple quadrupole tandem mass spectrometry (HPLC-ESI-QQQ-MS/MS). An extraction method using acetonitrile was used, and the purification of the extract was optimized using cryo-degreasing-tandem dispersive solid-phase extraction (d-SPE) to eliminate fatty interferents. The method validation yielded recoveries ranging from 81.17% to 109.28% and the method precision was < 10.00%. The limits of quantification ranged from 0.08 to 0.21 ng/g, which is below the current legal limits. This approach may play a crucial role in ensuring food safety.
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Affiliation(s)
- Can Wang
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Hao Liu
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Ruiqi Sun
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Jun Wang
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China.
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5
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Marzi Khosrowshahi E, Hassanpour Sabet R, Afshar Mogaddam MR, Khoubnasabjafari M, Jouyban-Gharamaleki V, Rayatpisheh M, Anushiravani A, Ghanbari R, Jouyban A. Carbonized aerogel/ZnO-based dispersive solid phase extraction of daclatasvir and sofosbuvir from biological samples prior to liquid chromatography-tandem mass spectrometry. J Pharm Biomed Anal 2024; 238:115841. [PMID: 37995479 DOI: 10.1016/j.jpba.2023.115841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 10/13/2023] [Accepted: 11/01/2023] [Indexed: 11/25/2023]
Abstract
Daclatasvir and sofosbuvir are antiviral medications utilized in the treatment of chronic hepatitis C virus (HCV) infection. Due to their low therapeutic index, careful monitoring is necessary to ensure that the optimal dose is administered. High-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) is an exceptionally sensitive and specific technique for quantifying these drugs within biological matrices. In this study, we developed a novel dispersive solid-phase extraction method employing a carbonized bio aerogel composite with ZnO for efficient extraction of daclatasvir and sofosbuvir from exhaled breath condensate, urine, and plasma samples. The extracted analytes were subsequently subjected to analysis using HPLC-MS/MS. Optimal parameters including pH adjustment, sorbent quantity variation, and elution solvent selection were fine-tuned to achieve maximum recovery efficiency while ensuring selectivity enhancements. The developed method demonstrated broad linearity ranging between 1.2 and 200 ng/mL along with good precision (relative standard deviations ≤6.2 %) and an acceptable coefficient of determination (r2 ≥0.994). These findings establish our proposed method as suitable for reliable drug quantification in clinical samples.
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Affiliation(s)
| | - Roghayeh Hassanpour Sabet
- Food and Drug Safety Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Neuroscience Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Maryam Khoubnasabjafari
- Tuberculosis and Lung Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Anesthesiology and Intensive Care, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Vahid Jouyban-Gharamaleki
- Liver and Gastrointestinal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Maryam Rayatpisheh
- Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir Anushiravani
- Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Ghanbari
- Gene Therapy Research Center, Digestive Diseases Research Institute, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Abolghasem Jouyban
- Pharmaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran; Faculty of Pharmacy, Near East University, PO BOX: 99138 Nicosia, North Cyprus, Mersin 10, Turkey.
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6
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Tang Y, Yang G, Ma Y, Huang D, Zhai W, Fodjo EK, Zhang X, Li S, Zhang W, Shi Y, Kong C. Development, validation, and implementation of an ultratrace analysis method for the determination of moenomycin A, in aquatic animal products. Anal Bioanal Chem 2024; 416:745-757. [PMID: 37812219 DOI: 10.1007/s00216-023-04965-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/09/2023] [Accepted: 09/15/2023] [Indexed: 10/10/2023]
Abstract
Moenomycin A, an antimicrobial growth promoter widely used as an additive in aquaculture feedstuffs, has been restricted for use in the European Union and China due to its potential risk of promoting resistant strains of pathogenic bacteria and causing residues in aquatic animal products. Although methods for analyzing moenomycin A in feedstuffs have been developed, no established method exists for aquatic matrices. In this study, we present, for the first time, a sensitive and validated high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) method for the determination of moenomycin A in aquatic animal products. Samples were extracted using methanol and purified with the QuEChERS method employing C18 sorbent. The aliquot was dried under a nitrogen stream, reconstituted with methanol-water solvent, and analyzed by HPLC-MS/MS. The developed method exhibited good linearity (r2 > 0.995) over a wide concentration range (1-100 μg/L) and a low limit of detection (1 µg/kg). Average recoveries ranged between 70 and 110% at spiked concentrations of 1, 50, and 100 μg/kg, with associated intra- and inter-day relative standard deviations of 1.25 to 7.32% (n = 6) and 2.91 to 10.08% (n = 3), for different representative aquatic animal production, respectively. To the best of our knowledge, this is the first reported HPLC-MS/MS method for the quantification of moenomycin A in aquatic animal products. The new approach was effectively employed in the analysis of moenomycin A across various aquatic samples.
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Affiliation(s)
- Yunyu Tang
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Jungong 300, Shanghai, 200090, People's Republic of China
| | - Guangxin Yang
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Jungong 300, Shanghai, 200090, People's Republic of China
| | - Yingqing Ma
- Shanghai Center of Agri-Product Quality and Safety, Xinfu Middle Road 1528, No.28, Shanghai, 201708, People's Republic of China
| | - Dongmei Huang
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Jungong 300, Shanghai, 200090, People's Republic of China.
| | - Wenlei Zhai
- Institute of Quality Standard and Testing Technology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, People's Republic of China
| | - Essy Kouadio Fodjo
- Laboratory of Constitution and Reaction of Matter, UFR SSMT, Université Felix Houphouet Boigny, 22 BP 582 Abidjan 22, Abidjan, Côte d'Ivoire
| | - Xuan Zhang
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Jungong 300, Shanghai, 200090, People's Republic of China
| | - Siman Li
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Jungong 300, Shanghai, 200090, People's Republic of China
| | - Weiyi Zhang
- Shanghai Center of Agri-Product Quality and Safety, Xinfu Middle Road 1528, No.28, Shanghai, 201708, People's Republic of China.
| | - Yongfu Shi
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Jungong 300, Shanghai, 200090, People's Republic of China
| | - Cong Kong
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Jungong 300, Shanghai, 200090, People's Republic of China.
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7
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Li Y, Yan Z, Fan J, Yao X, Cai Y. Preparation of COF-coated nickel foam adsorbents for dispersive solid-phase extraction of 16 polycyclic aromatic hydrocarbons from Chinese herbal medicines. Talanta 2023; 265:124916. [PMID: 37442001 DOI: 10.1016/j.talanta.2023.124916] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/27/2023] [Accepted: 07/04/2023] [Indexed: 07/15/2023]
Abstract
Covalent organic framework coated nickel foam (NF@COF) was prepared as a sorbent for the dispersive solid phase extraction (DSPE) of polycyclic aromatic hydrocarbons (PAHs) from Chinese herbal medicines (CHMs) prior to their determination by gas chromatography-mass spectrometry (GC-MS). The structure and morphology of the as-synthesized NF@COF were characterized by different techniques. Various key parameters affecting the performance of the DSPE method, including the amount of sorbent, desorption solvent, desorption volume and time, extraction time, and sample volume, were investigated. Under the optimized conditions, NF@COF combined with GC-MS was successfully applied to the determination of 16 PAHs in CHMs. The method showed wide linearity (20-2000 ng mL-1), low limits of determination (0.3-2.7 ng mL-1), and high recoveries (78.0-124%). These results revealed that NF@COF has the potential for efficient extraction of PAHs from complex samples.
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Affiliation(s)
- Yang Li
- College of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, 330004, China.
| | - Zhihong Yan
- College of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, 330004, China
| | - Jiahua Fan
- College of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, 330004, China
| | - Xuelian Yao
- College of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, 330004, China
| | - Ying Cai
- College of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, 330004, China.
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8
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Yao Z, Li M, Sun Y, Wang C, Wei Y. Preparation of restricted-access boronate affinity adsorbent with excellent anti-protein adsorption property for directly extracting small cis-diol molecules from biological matrices. Talanta 2023; 265:124867. [PMID: 37385192 DOI: 10.1016/j.talanta.2023.124867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 06/09/2023] [Accepted: 06/20/2023] [Indexed: 07/01/2023]
Abstract
Boronate affinity adsorbents are of great promise in the enrichment of small cis-diol-containing molecules (cis-diols) from biological matrices. This work develops a restricted-access boronate affinity mesoporous adsorbent, in which boronate sites are only distributed on the internal surface of mesopores and the external surface is a strongly hydrophilic layer. The adsorbent has high binding capacities (30.3 mg g-1, 22.9 mg g-1 and 14.9 mg g-1 for dopamine, catechol and adenosine, respectively) in spite of removal of the boronate sites on the external surface of adsorbent. The adsorption specific of adsorbent towards cis-diols was assessed by dispersive solid-phase extraction (d-SPE) method, and the results show that the adsorbent can selectively extract small cis-diols in the biosamples while exclude proteins completely. Under the optimal d-SPE, the nucleosides and cis-diol drugs in human serum were successfully analyzed by coupling d-SPE with high-performance liquid chromatography. Where, the detection limits are between 6.1 and 13.4 ng mL-1 for four nucleosides, and 24.9 and 34.3 ng mL-1 for two cis-diol drugs; the relative recoveries of all the analytes vary from 84.1% to 110.1% (RSDs <13.4%, n = 6). The results indicate that the adsorbent can directly treat the real biosamples without the necessary protein precipitation steps in advance, thus simplifying the analysis process.
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Affiliation(s)
- Zewei Yao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China
| | - Mao Li
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China
| | - Yao Sun
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China
| | - Chaozhan Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China
| | - Yinmao Wei
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China.
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9
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Shamsi F, Sheibani A, Shishehbore MR. Determination of bupropion by off-line coupling Fe 3O 4@CuO&GO nanocomposite and ion mobility spectrometry with application to biological samples. ANAL SCI 2023; 39:1521-1529. [PMID: 37243968 DOI: 10.1007/s44211-023-00371-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Accepted: 05/16/2023] [Indexed: 05/29/2023]
Abstract
In this study, an off-line coupling of dispersive solid-phase extraction (DSPE) and ion mobility spectrometry (IMS) was introduced to extract and determine bupropion (BUP). A magnetic nanocomposite adsorbent (Fe3O4@CuO&GO) was fabricated by combining graphene oxide (GO) sheets with Fe3O4 and CuO through coprecipitation method. The synthesized adsorbent was characterized and analyzed using the analytical techniques. The effect of extraction parameters including desorption solvent (type and volume), pH, adsorbent amount, contact time, temperature, and the volume of analyte solution on the extraction efficiency was investigated and optimized. The operational parameters of IMS method were also investigated. Under the optimum conditions (DSPE-IMS), the proposed method provided a linear range 4.0-24.0 ng for BUP with a determination coefficient R2 ≥ 0.98. LOD and LOQ values were 0.7 and 2.2 ng for BUP. The repeatability of proposed method was evaluated and reported as relative standard deviation (RSD% ≤ 5.5). The developed method was applied to determine BUP in different biological samples, in which satisfactory results were obtained (93.0-98.0%).
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Affiliation(s)
- Farideh Shamsi
- Department of Chemistry, Yazd Branch, Islamic Azad University, Yazd, Iran
| | - Ali Sheibani
- Department of Chemistry, Yazd Branch, Islamic Azad University, Yazd, Iran.
| | - M Reza Shishehbore
- Department of Chemistry, Yazd Branch, Islamic Azad University, Yazd, Iran
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10
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Li Q, Zhu S, Wu F, Chen F, Guo C. Slice-layer COFs-aerogel: a regenerative dispersive solid-phase extraction adsorbent for determination of ultra-trace quinolone antibiotics. Mikrochim Acta 2023; 190:369. [PMID: 37624432 DOI: 10.1007/s00604-023-05925-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 07/19/2023] [Indexed: 08/26/2023]
Abstract
A novel type of three-dimensional network structure, covalent organic frameworks (COFs) aerogel, was fabricated and applied to dispersive solid-phase extraction (dSPE) of quinolone antibiotics (QAs). Density functional theory (DFT) was applied to investigate the possible interaction mechanism and results confirmed that the strong adsorption affinity is attributed to the intralayer hydrogen bonds and π-π interaction. Furthermore, a sensitive analytical method based on COFs-aerogel for determining quinolone antibiotics residues in water and honey samples was developed and HPLC-MS/MS was used for sample detection and quantification. Under the optimal conditions, COFs-aerogel exhibited a wide linearity (0.1-500 ng∙L-1), low limits of detection (0.02-0.06 ng∙L-1), and good precision (RSD ˂ 10%) for selected QAs. A preliminary practical application of the developed method was proved by the efficient detection of quinolone antibiotics in water and food samples with good recoveries (68.2-104% and 64.0-100% for water and honey samples, respectively). Combining the experimental data with theoretical calculation, results illustrated that COFs-aerogel holds a great potential to capture contaminants and address environmental and food safety issues.
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Affiliation(s)
- Qiulin Li
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215011, People's Republic of China.
| | - Simin Zhu
- China Fire and Rescue Institute, Beijing, 102200, People's Republic of China
| | - Fang Wu
- School of Material and Chemical Engineering, Bengbu University, Bengbu, 233000, People's Republic of China
| | - Feng Chen
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215011, People's Republic of China
| | - Chunxian Guo
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215011, People's Republic of China.
- Collaborative Innovation Center of Water Treatment Technology & Material, Suzhou University of Science and Technology, Suzhou, 215011, People's Republic of China.
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11
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Qin P, Chen D, Li D, Li M, Mu M, Gao Y, Zhu S, Lu M. Synthesis of spindle-like amino-modified Zn/Fe bimetallic metal-organic frameworks as sorbents for dispersive solid-phase extraction and preconcentration of phytohormoes in vegetable samples. Food Chem 2023; 409:135272. [PMID: 36623357 DOI: 10.1016/j.foodchem.2022.135272] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 12/16/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022]
Abstract
Amino-modified Zn/Fe bimetallic metal-organic frameworks (NH2-Zn/Fe-MIL-88) were synthesized using a one-step solvothermal method with FeCl3·6H2O and Zn(NO3)2·6H2O as metal salts and 2-aminoterephthalic acid as organic ligand. The morphology of NH2-Zn/Fe-MIL-88 can be regulated from octahedral-like to spindle-like with changing molar ratios of metal salts. Using NH2-Zn/Fe-MIL-88 as sorbent, a dispersive solid-phase extraction with putting sorbents into sample solution to extract targets was developed to preconcentrate phytohormones in vegetables. To study the extraction efficiency, a series of NH2-Zn/Fe-MIL-88s with varying molar ratios of metal salts were prepared. The results indicated that NH2-Zn/Fe-MIL-88(1) presented the highest extraction efficiency (82.6 %-98.1 %) to phytohormones among all prepared NH2-Zn/Fe-MIL-88(x). The limits of detection were calculated at 0.07-0.15 ng/mL. The adsorption isotherms and kinetic parameters of NH2-Zn/Fe-MIL-88 for phytohormones were conformed to Langmuir and pseudo-second-order models. The NH2-Zn/Fe-MIL-88 as sorbent combined with HPLC was applied to detect phytohormones in cucumber and tomato samples.
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12
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Jung WT, Hsieh YH, Kuo YJ, Yu YH, Liu YH, Lu KL, Lee HL. Rapid microwave synthesis of MOF microrods: Dispersive SPE coupled with UHPLC-MS/MS to determine fluoroquinolones in honey. Talanta 2023; 263:124733. [PMID: 37247453 DOI: 10.1016/j.talanta.2023.124733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 05/20/2023] [Accepted: 05/23/2023] [Indexed: 05/31/2023]
Abstract
A novel sorbent Cu-S metal-organic framework (MOF) microrods was prepared for dispersive solid-phase extraction via microwave synthesis and used to determine 12 fluoroquinolones (FQs) in honey samples employing ultrahigh-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS). The best extraction efficiency was achieved by optimizing sample pH, sorbent quantity, eluent type/volume, and extraction and elution time. The proposed MOF exhibits advantages such as rapid synthesis time (20 min) and outstanding adsorption ability toward zwitterionic FQs. These advantages can be attributed to multiple interactions, including hydrogen bonding, π-π interaction, and hydrophobic interaction. The limits of detection of analytes were 0.005-0.045 ng g-1. Acceptable recoveries (79.3%-95.6%) were obtained under the optimal conditions. Precision (relative standard deviation, RSD) was <9.2%. These results demonstrate the utility of our sample preparation method and the high capacity of Cu-S MOF microrods for rapid and selective extraction of FQs from honey samples.
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Affiliation(s)
- Wei-Ting Jung
- Department of Chemistry, Fu Jen Catholic University, Xinzhuang District, New Taipei City, 24205, Taiwan
| | - Yi-Hsuan Hsieh
- Department of Chemistry, Fu Jen Catholic University, Xinzhuang District, New Taipei City, 24205, Taiwan
| | - Yen-Jung Kuo
- Department of Chemistry, Fu Jen Catholic University, Xinzhuang District, New Taipei City, 24205, Taiwan
| | - Yuan-Hsiang Yu
- Department of Chemistry, Fu Jen Catholic University, Xinzhuang District, New Taipei City, 24205, Taiwan
| | - Yen-Hsiang Liu
- Department of Chemistry, Fu Jen Catholic University, Xinzhuang District, New Taipei City, 24205, Taiwan
| | - Kuang-Lieh Lu
- Department of Chemistry, Fu Jen Catholic University, Xinzhuang District, New Taipei City, 24205, Taiwan
| | - Hui-Ling Lee
- Department of Chemistry, Fu Jen Catholic University, Xinzhuang District, New Taipei City, 24205, Taiwan.
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13
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Kumar A, Sharma C. UiO-66-NH 2: a recyclable and efficient sorbent for dispersive solid-phase extraction of fluorinated aromatic carboxylic acids from aqueous matrices. Anal Bioanal Chem 2023:10.1007/s00216-023-04728-1. [PMID: 37193876 DOI: 10.1007/s00216-023-04728-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/15/2023] [Accepted: 05/02/2023] [Indexed: 05/18/2023]
Abstract
The present study describes the trace analysis of 23 fluorinated aromatic carboxylic acids based on the dispersive solid-phase extraction (dSPE) technique using UiO-66-NH2 MOF as efficient, recyclable sorbent, and GC-MS negative ionization mass spectrometry (NICI MS) as determination technique. All 23 fluorobenzoic acids (FBAs) were enriched, separated, and eluted in a shorter retention time; the derivatization was done by pentafluorobenzyl bromide (1% in acetone), in which the use of inorganic base K2CO3 was improved by triethylamine to increase the lifespan of the GC column. The performance of UiO-66-NH2 was evaluated by dSPE in Milli-Q water, artificial seawater, and tap water samples, and the impact of various parameters on the extraction efficiency was investigated by GC-NICI MS. The method was found to be precise, reproducible, and applicable to the seawater samples. In the linearity range, the regression value was found to be >0.98; LOD and LOQ were found to be in the range of 0.33-1.17 ng/mL and 1.23-3.33 ng/mL, respectively; and the value of the extraction efficiency was found to range between 98.45 and 104.39% for Milli-Q water samples, 69.13-105.48% for salt-rich seawater samples, and 92.56-103.50% for tap water samples with a maximum RSD value of 6.87% that confirms the applicability of the method to different water matrices.
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Affiliation(s)
- Anuj Kumar
- GC-MS Laboratory, Department of Paper Technology, Indian Institute of Technology Roorkee, Uttar Pradesh, Saharanpur Campus, Saharanpur, 247001, India
| | - Chhaya Sharma
- GC-MS Laboratory, Department of Paper Technology, Indian Institute of Technology Roorkee, Uttar Pradesh, Saharanpur Campus, Saharanpur, 247001, India.
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14
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Cheng R, Mao X, Yu J, Liu F, Guo L, Luo D, Wan Y. A dispersive solid-phase extraction method for the determination of Aristolochic acids in Houttuynia cordata based on MIL-101(Fe): An analytes-oriented adsorbent selection design. Food Chem 2023; 407:135074. [PMID: 36493489 DOI: 10.1016/j.foodchem.2022.135074] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 11/21/2022] [Accepted: 11/23/2022] [Indexed: 11/27/2022]
Abstract
In view of the molecular structure of Aristolochic acid I (AA-I) and Aristolochic acid II (AA-II), MIL-101(Fe) was selected as the sorbent to develop a dispersive solid-phase extraction (d-SPE) method for capturing the two analytes from Houttuynia cordata. The interactions between the sorbent and analytes were investigated by FT-IR, XPS and UV-Vis DRS spectra. The optimized method demonstrated good linearity with R2 > 0.9999. The limit of detections (LODs) were 0.007 mg/L and 0.014 mg/L for AA-I and AA-II, respectively, lower than the limit stipulated by Chinese Pharmacopoeia (0.001 %, w/w). The recoveries for AA-I and AA-II were within the range of 73.3-106.4 %. The precisions of intra-day and inter-day were 0.9-5.8 % and 2.1-5.8 %, respectively. Thus, the established method demonstrated to be efficient and reliable to determine AA-I and AA-II in Houttuynia cordata.
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Affiliation(s)
- Rui Cheng
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Xuejin Mao
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
| | - Jiaying Yu
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Fan Liu
- Jiangxi Province Key Laboratory of Modern Analytical Science, Nanchang University, Nanchang 330031, China
| | - Lan Guo
- Jiangxi Province Key Laboratory of Modern Analytical Science, Nanchang University, Nanchang 330031, China
| | - Dongmei Luo
- School of Chemistry and Life Sciences, Chifeng University, Chifeng 024000, China
| | - Yiqun Wan
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China; State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; Jiangxi Province Key Laboratory of Modern Analytical Science, Nanchang University, Nanchang 330031, China.
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15
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Costa LM, Borges FA, da Silva Cavalcanti MH, do Lago AC, Tarley CRT, de Fátima Lima Martins G, Figueiredo EC. Direct magnetic sorbent sampling flame atomic absorption spectrometry (DMSS-FAAS) for highly sensitive determination of trace metals. Anal Chim Acta 2023; 1251:340709. [PMID: 36925273 DOI: 10.1016/j.aca.2022.340709] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 11/14/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022]
Abstract
A procedure of direct magnetic sorbent sampling in flame atomic absorption spectrometry (DMSS-FAAS) was developed in this work. Metal-loaded magnetic sorbents were directly inserted in the flame of the FAAS for direct metal desorption/atomization. Magnetic graphene oxide aerogel (M-GOA) particles were synthesized, characterized, and used as a proof-of-concept in the magnetic dispersive solid phase extraction of Pb2+ ions from water samples. M-GOA was selected because is a light and porous sorbent, with high adsorption capacity, that is quickly burned by the flame. Magnetic particles were directly inserted in the flame by using a metallic magnetic probe, thereby avoiding the need for a chemical elution step. As all the extracted Pb2+ ions arrive to the flame without passing through the nebulization system, a drastic increase in the analytical signal was achieved. The improvement in the sensitivity of the proposed method (DMSS-FAAS) for Pb2+ determination was at least 40 times higher than the conventional procedure in which the Pb2+ is extracted, eluted, and analyzed by conventional flame atomic absorption spectrometry (FAAS) via the nebulization system. The analytical curve was linear from 5.0 to 180.0 μg L-1 and the limit of detection was found to be 1.30 μg L-1. Background measurements were insignificant, and the atomic absorption peaks were narrow and reproducible. Precision assessed as a percentage of the relative standard deviation %RSD was found to be 17.4, 7.1, and 7.8% for 10, 70, and 180 μg L-1 levels, respectively. The method showed satisfactory results even in the presence of other ions (Al3+, Cr3+, Co2+, Cu2+, Fe3+, Mn2+, Ba2+, Mg2+, and Li+). The performance of the new system was also evaluated for Cd2+ ions, as well as by using other magnetic particles available in our lab: magnetic carbon nanotubes (M-CNTs), magnetic restricted access carbon nanotubes (M-RACNT), magnetic poly (methacrylic acid-co-ethylene glycol dimethacrylate) (M-PMA), magnetic nanoparticles coated with orange powder peel (M-OPP), and magnetic nanoparticles covered with SiO2 (M - SiO2). Analytical signals increased for both analytes in all sorbents (increases of about 4-37 times), attesting the high potential and applicability of the proposed method. Simplicity, high analytical frequency, high detectability and reproducibility, low cost, and possibility of being totally mechanized are the most relevant advantages.
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Affiliation(s)
- Lucimara Mendonça Costa
- Laboratory of Toxicant and Drug Analyses, Faculty of Pharmaceutical Sciences, Federal University of Alfenas, 37130-001, Alfenas, MG, Brazil; Institute of Chemistry, Federal University of Alfenas, 37130-001, Alfenas, MG, Brazil
| | - Fabrício Alves Borges
- Laboratory of Toxicant and Drug Analyses, Faculty of Pharmaceutical Sciences, Federal University of Alfenas, 37130-001, Alfenas, MG, Brazil; Institute of Chemistry, Federal University of Alfenas, 37130-001, Alfenas, MG, Brazil
| | | | - Ayla Campos do Lago
- Laboratory of Toxicant and Drug Analyses, Faculty of Pharmaceutical Sciences, Federal University of Alfenas, 37130-001, Alfenas, MG, Brazil; Institute of Chemistry, Federal University of Alfenas, 37130-001, Alfenas, MG, Brazil
| | - César Ricardo Teixeira Tarley
- Department of Chemistry, State University of Londrina, Rodovia Celso Garcia Cid. 445, Km 380, Londrina, 86057-970, PR, Brazil
| | | | - Eduardo Costa Figueiredo
- Laboratory of Toxicant and Drug Analyses, Faculty of Pharmaceutical Sciences, Federal University of Alfenas, 37130-001, Alfenas, MG, Brazil.
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16
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Lu Y, Shen Q, Zhai C, Yan H, Shen S. Ant nest-like hierarchical porous imprinted resin- dispersive solid-phase extraction for selective extraction and determination of polychlorinated biphenyls in milk. Food Chem 2023; 406:135076. [PMID: 36455312 DOI: 10.1016/j.foodchem.2022.135076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 11/22/2022] [Accepted: 11/23/2022] [Indexed: 11/29/2022]
Abstract
Polychlorinated biphenyls (PCBs) are persistent toxic, organic chemicals that tend to accumulate in the food chain. This study reports the rapid and selective extraction and determination of PCBs (PCB81, 153, 105, 126, and 157) in milk samples by a dispersive solid-phase extraction (DSPE) coupled with gas chromatography-tandem mass spectrometry (GC-MS/MS). An ionic liquid-molecularly imprinted porous resin (IL-MIPPR) as a DSPE adsorbent was synthesized from m-aminophenol, formaldehyde, and 2,2'-benzidinedisulfonic acid as the monomer, crosslinker, and virtual template, respectively. The IL-MIPPR had a fast mass transfer (1.0 min) and good selectivity (imprinting factors of 1.8-3.0). The IL-MIPPR - DSPE - GC-MS/MS method exhibited good linearity (R2 ≥ 0.9995), the limit of detections (LODs) < 0.6 pg/g, and the recoveries ranged from 82.8 % to 106 % with relative standard deviations ≤ 6.6 %. This method is thus better than previously reported methods in terms of the LOD, the adsorbent dosage, and the extraction time.
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Affiliation(s)
- Yanke Lu
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China; Key Laboratory of Public Health Safety of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Pharmaceutical Sciences, Hebei University, Baoding 071002, China
| | - Qi Shen
- Institute of Chemistry, Chinese Academy of Science, Beijing 100190, China
| | - Chengcheng Zhai
- Key Laboratory of Public Health Safety of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Pharmaceutical Sciences, Hebei University, Baoding 071002, China
| | - Hongyuan Yan
- Key Laboratory of Public Health Safety of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Pharmaceutical Sciences, Hebei University, Baoding 071002, China.
| | - Shigang Shen
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China.
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17
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Wang R, Tong W, Wu Y, Chen Z, Lin Z, Cai Z. Facile synthesis of hollow microtubular COF as enrichment probe for quantitative detection of ultratrace quinones in mice plasma with APGC-MS/MS. Mikrochim Acta 2023; 190:72. [PMID: 36695957 DOI: 10.1007/s00604-023-05639-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 12/26/2022] [Indexed: 01/26/2023]
Abstract
A hollow microtubular covalent organic framework (denoted as TatDha-COF) was synthesized by solvothermal method for the enrichment and determination of quinones. The TatDha-COF showed large specific surface area (2057 m2 g-1), good crystal structure, ordered pore size distribution (2.3 nm), stable chemical properties and good reusability. Accordingly, a simple and efficient method based on dispersive solid-phase extraction (d-SPE) and atmospheric pressure gas chromatography tandem mass spectrometry (APGC-MS/MS) was developed for the determination of quinones in complex samples. The established method demonstrated a wide liner range, good linearity (r>0.9990), high enrichment factors (EFs, 24-69-folds) and low detection limits (LODs, 0.200-30.0 pg L-1, S/N≥3). On this basis, the suggested method was successfully applied to sensitively detect the eight ultratrace quinones in mice plasma. Overall, the established method has provided a powerful tool for the enrichment and detection of ultratrace quinones in complex samples, presenting the promising application of TatDha-COF in sample pretreatment.
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Affiliation(s)
- Ran Wang
- Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China
| | - Wei Tong
- Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China
| | - Yijing Wu
- Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China
| | - Zhuling Chen
- Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China
| | - Zian Lin
- Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China.
| | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, 224 Waterloo Road, Kowloon Tong, 999077, Hong Kong, SAR, People's Republic of China.
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18
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Şaylan M, Demirel R, Ayyıldız MF, Chormey DS, Çetin G, Bakırdere S. Nickel hydroxide nanoflower-based dispersive solid-phase extraction of copper from water matrix. Environ Monit Assess 2022; 195:133. [PMID: 36409393 DOI: 10.1007/s10661-022-10653-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
In this work, a dispersive solid-phase extraction method based on Ni(OH)2 nanoflowers (Ni(OH)2-NFs-DSPE) was developed to separate and preconcentrate copper ions from tap water samples for determination by flame atomic absorption spectrometry (FAAS). Ni(OH)2-NFs was synthesized using a homogeneous precipitation technique and used as sorbent for copper preconcentration. X-ray diffraction, scanning electron microscopy, and Fourier-transform infrared spectroscopy were used to characterize the synthesized sorbent. All experimental variables were carefully optimized to achieve a high enhancement factor of 107.5-folds with respect to the detection sensitivity of the conventional FAAS. The proposed method's analytical parameters including LOD, LOQ, and linear range were determined as 1.33 μg/L, 4.42 μg/L, and 3.0-40 μg/L, respectively. To assess the applicability and reliability of the developed method, optimal conditions were applied to tap water samples and satisfactory percent recoveries (94-103%) were obtained for the samples spiked at 20 and 30 μg/L. This validated the accuracy and feasibility of the developed method to real samples. The developed method can be described as a simple, efficient, and rapid analytical approach for the accurate determination of trace copper ions in water samples.
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Affiliation(s)
- Meltem Şaylan
- Department of Chemistry, Yıldız Technical University, 34220, Istanbul, Turkey
- Department of Pharmacy, İstanbul Health and Technology University, Seyitnizam Street, No: 85, Istanbul, Turkey
| | - Rabia Demirel
- Department of Chemistry, Yıldız Technical University, 34220, Istanbul, Turkey
| | | | - Doste Selali Chormey
- Neutec Pharmaceutical, Yıldız Technical University Teknopark, 34220, Istanbul, Turkey
| | - Gülten Çetin
- Department of Chemistry, Yıldız Technical University, 34220, Istanbul, Turkey.
| | - Sezgin Bakırdere
- Department of Chemistry, Yıldız Technical University, 34220, Istanbul, Turkey.
- Turkish Academy of Sciences (TÜBA), Vedat Dalokay Street, No: 112, 06670, Cankaya, 06690, Ankara, Turkey.
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19
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He C, Ma J, Xu H, Ge C, Lian Z. Selective capture and determination of doxycycline in marine sediments by using magnetic imprinting dispersive solid-phase extraction coupled with high performance liquid chromatography. Mar Pollut Bull 2022; 184:114215. [PMID: 36307947 DOI: 10.1016/j.marpolbul.2022.114215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/30/2022] [Accepted: 10/02/2022] [Indexed: 06/16/2023]
Abstract
Antibiotics are frequently used in aquaculture as feed additives and finally enter the marine environment that can pose potential threat to humans. In this study, magnetic molecularly imprinted nanocomposites were prepared by surface imprinting and applied as selective sorbents for specific capture of doxycycline. A multivariate approach based on response surface methodology with Box-Behnken design was adopted to optimize the dispersive solid-phase extraction of doxycycline from marine sediment. Three key parameters, including adsorbent amount and type of washing/eluting solvent, were screened. Under optimum conditions, the limit of detection was 0.03 μg g-1 with good linearity from 0.5 to 20 μg g-1 followed by HPLC detection. Finally, two sediment samples were analysed and satisfactory recoveries between 90.60 % and 93.76 % were obtained with acceptable relative standard deviations (≤4.12 %), suggesting a promising applicability of the developed method for efficient extraction and sensitive quantification of antibiotics in complex marine environmental matrix.
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Affiliation(s)
- Cheng He
- Marine College, Shandong University, Weihai 264209, China
| | - Jiaxin Ma
- Marine College, Shandong University, Weihai 264209, China
| | - Huan Xu
- Marine College, Shandong University, Weihai 264209, China
| | - Changzi Ge
- Marine College, Shandong University, Weihai 264209, China
| | - Ziru Lian
- Marine College, Shandong University, Weihai 264209, China.
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20
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Metin B, Güleryüz A, Chormey DS, Zaman BT, Bakirdere S. Determination of diflufenican and azaconazole pesticides in wastewater samples by GC-MS after preconcentration with stearic acid functionalized magnetic nanoparticles-based dispersive solid-phase extraction. Environ Monit Assess 2022; 195:32. [PMID: 36284003 DOI: 10.1007/s10661-022-10699-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 10/20/2022] [Indexed: 06/16/2023]
Abstract
This study presents the preconcentration of diflufenican and azaconazole from domestic wastewater samples by using dispersive solid-phase extraction (dSPE) for determination by gas chromatography-mass spectrometry (GC-MS). Stearic acid-coated magnetic nanoparticles were used as adsorbents for dSPE method. In order to maximize the efficiency of the extraction process, parameters such as magnetic nanoparticle (MNP) type and amount, eluent type and volume, mixing type, and mixing period were all optimized. The linear range obtained for azaconazole and diflufenican was 7.50-500 ng/mL and 7.50-750 ng/mL, and their limits of detection/quantification (LOD/LOQ) were calculated as 1.3/4.3 ng/mL and 1.4/4.7 ng/mL, respectively. By comparing the LOD values of direct GC-MS and the developed dSPE method, azaconazole and diflufenican recorded approximately 35 and 38 folds enhancement in detection power. Recovery experiments with domestic wastewater were carried out to certify the proposed method's accuracy and applicability. By using the matrix matching calibration strategy, the good percent recovery results between 98 and 105% were obtained.
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Affiliation(s)
- Berfin Metin
- Department of Chemistry, Faculty of Art and Science, Yıldız Technical University, 34220, Istanbul, Turkey
| | - Aybüke Güleryüz
- Department of Chemistry, Faculty of Art and Science, Yıldız Technical University, 34220, Istanbul, Turkey
| | - Dotse Selali Chormey
- Department of Chemistry, Faculty of Art and Science, Yıldız Technical University, 34220, Istanbul, Turkey
- Neutec Pharmaceutical, Yıldız Technical University Teknopark, 34220, Istanbul, Turkey
| | - Buse Tuğba Zaman
- Department of Chemistry, Faculty of Art and Science, Yıldız Technical University, 34220, Istanbul, Turkey
| | - Sezgin Bakirdere
- Department of Chemistry, Faculty of Art and Science, Yıldız Technical University, 34220, Istanbul, Turkey.
- Turkish Academy of Sciences (TÜBA), Vedat Dalokay Street, No: 112, 06670, Çankaya, Ankara, Turkey.
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21
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Ebrar Karlidağ N, Toprak M, Demirel R, Tuğba Zaman B, Bakirdere S. Development of copper nanoflowers based dispersive solid-phase extraction method for cadmium determination in shalgam juice samples using slotted quartz tube atomic absorption spectrometry. Food Chem 2022; 396:133669. [PMID: 35841682 DOI: 10.1016/j.foodchem.2022.133669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 05/31/2022] [Accepted: 07/08/2022] [Indexed: 11/28/2022]
Abstract
In this work, dispersive solid-phase extraction procedure was developed for trace cadmium determination before flame atomic absorption spectrometry (FAAS) measurement. Copper(II) based nanoflowers were synthesized to utilize as adsorbent for preconcentration of cadmium. The detection power of the spectrometric system was enhanced by placing a slotted quartz tube (SQT) onto the flame burner which increases the residence time of the analyte atoms in the flame region. The analytical performance of the developed system was evaluated with and without SQT equipment and the enhancement in detection power was calculated by the ratio of detection limits of CuNF-DSPE-FAAS (copper nanoflower based dispersive solid phase extraction-flame atomic absorption spectrometry) and FAAS system. Enhancement was determined as 73 and 104.3 times for CuNF-DSPE-FAAS and CuNF-DSPE-SQT-FAAS (CuNF-DSPE-slotted quartz tube-FAAS), respectively. Percent recovery results indicated the applicability of the developed method for the determination of trace cadmium.
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Affiliation(s)
| | - Münevver Toprak
- Yıldız Technical University, Department of Chemistry, 34210 İstanbul, Turkey
| | - Rabia Demirel
- Yıldız Technical University, Department of Chemistry, 34210 İstanbul, Turkey
| | - Buse Tuğba Zaman
- Yıldız Technical University, Department of Chemistry, 34210 İstanbul, Turkey
| | - Sezgin Bakirdere
- Yıldız Technical University, Department of Chemistry, 34210 İstanbul, Turkey; Turkish Academy of Sciences (TÜBA), Vedat Dalokay Street, No: 112, Çankaya 06670, Ankara, Turkey.
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22
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Zhou L, Yu J. Use of hydroxypropyl β-cyclodextrin hybrid monolithic material as adsorbent for dispersive solid-phase extraction of fluoroquinolones from environmental water samples. J Sep Sci 2022; 45:2310-2320. [PMID: 35447012 DOI: 10.1002/jssc.202200054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 04/08/2022] [Accepted: 04/12/2022] [Indexed: 11/09/2022]
Abstract
In this study, the hydroxypropyl β-cyclodextrin hybrid monolithic material was fabricated and firstly applied as adsorbent for dispersive solid-phase extraction coupled with high-performance liquid chromatography to detect trace-level seven fluoroquinolones in water samples. The prepared hydroxypropyl β-cyclodextrin hybrid monolithic material was characterized by fourier transform infrared spectroscopy, scanning electron microscopy and adsorption experiments, which showed excellent specific adsorption to the target fluoroquinolones. Under the optimized conditions, the extraction methodology showed satisfactory precision with relative standard deviations between 2.6 and 5.6%, good linearity (R2 ≥0.9990) and satisfactory recoveries (82.5∼91.8%). The limits of detection and limits of quantification of the method were in the range of 0.4∼1.2 ng mL-1 and 1.4∼4.0 ng mL-1 respectively, which confirmed the possibility of quantifying trace levels. Furthermore, the material could be reused at least five times. These results demonstrated that the hydroxypropyl β-cyclodextrin hybrid monolithic material was a promising adsorbent for fluoroquinolones, and the established method combined dispersive solid-phase extraction with high-performance liquid chromatography was suitable for the determination of fluoroquinolones in aqueous samples. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Li Zhou
- Department of Health Inspection, College of Public Health, Shenyang Medical College, No. 146, North Huanghe Street, Shenyang, Liaoning Province, 110034, China.,School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road Shenhe District, Shenyang, Liaoning Province, 110016, China
| | - Jia Yu
- School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road Shenhe District, Shenyang, Liaoning Province, 110016, China
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23
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Zhong M, Lao Z, Tan J, Yu G, Liu Y, Liang Y. Synthesis of CoNi-layered double hydroxide on graphene oxide as adsorbent and construction of detection method for taste and odor compounds in smelling water. J Hazard Mater 2022; 428:128227. [PMID: 35030483 DOI: 10.1016/j.jhazmat.2022.128227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 01/02/2022] [Accepted: 01/04/2022] [Indexed: 06/14/2023]
Abstract
Taste and odor (T&O) compounds are important water pollutant, some of which are toxic. The relevant studies are all expand upon the well-known T&O compounds but for the unknown odors in smelling water. In this work, a method combining purge and trap with gas chromatograph-mass spectrometer (PT-GC/MS) and disperse solid-phase extraction with gas chromatograph (GC) was first proposed to detect T&O compounds in unknown odorous water accurately. Firstly, PT-GC/MS was used for a qualitative test on unknown odors in smelling water and determine the analytes. The hollow CoNi-layered double hydroxide (LDH) on graphene oxide (GO) was then used as a composite adsorbent to pretreat the water, in which the GO provided large specific surface, and the LDH worked as a confinement cavity to enhance capture and retention capacity for volatile organic compounds (VOCs). According to the properties of T&O compounds determined by PT-GC/MS in water, a corresponding GC method was established for accurately quantitative analysis. In this paper, five T&O compounds were detected simultaneously, including dimethyl sulfide, meistylene, N, N-dimethylbenzylamine, 2, 4-dimethylbenzaldehyde and 2, 4-di-tert-butylphenol. Extraction parameters were optimized, including ratio of desorption solvent, amount of adsorbent, pH value, etc. Under the optimal conditions, the detection limits for analysis were 1.14 μg/L to 3.07 mg/L. The satisfactory recoveries were 94-98%. Furthermore, two optimal determination outcomes of odor waters from different places support the practicability of the method, which is expected to be widely used in the detection of unknown odors in smelling water.
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Affiliation(s)
- Mingmin Zhong
- School of Chemistry, South China Normal University, Guangzhou 510631, PR China
| | - Zhixiong Lao
- Gaoming Water Supply Co., Ltd. of Foshan Water Industry Group, Foshan 528000, PR China
| | - Jianrong Tan
- Gaoming Water Supply Co., Ltd. of Foshan Water Industry Group, Foshan 528000, PR China
| | - Guangzhou Yu
- Gaoming Water Supply Co., Ltd. of Foshan Water Industry Group, Foshan 528000, PR China
| | - Yan Liu
- Guangdong Centre for Agricultural Products Quality and Safety, Guangzhou 510631, PR China.
| | - Yong Liang
- School of Chemistry, South China Normal University, Guangzhou 510631, PR China.
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24
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Xiong H, Fan Y, Mao X, Guo L, Yan A, Guo X, Wan Y, Wan H. Thermosensitive and magnetic molecularly imprinted polymers for selective recognition and extraction of aristolochic acid I. Food Chem 2022; 372:131250. [PMID: 34627093 DOI: 10.1016/j.foodchem.2021.131250] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 08/27/2021] [Accepted: 09/26/2021] [Indexed: 12/11/2022]
Abstract
Recently, the natural compound of aristolochic acid I (AAI) has attracted wide attentions due to its strong nephrotoxicity and carcinogenicity. However, the extraction of AAI based on conventional molecularly imprinted polymers (MIPs) are tedious with extensive eluent, causing secondary pollution and poor regeneration. Herein, thermosensitive and magnetic MIPs (TMMIPs) were synthesized by a surface imprinting method, which achieved thermosensitive capture/release of AAI, along with rapid magnetic separation, significantly shortening the elution time and reducing organic-solvent consumption. TMMIPs with dual-stimuli responses exhibited superior affinity, selectivity, kinetics, and regeneration ability towards AAI. TMMIPs were applied to analyze AAI in Houttuynia cordata via dispersive solid-phase extraction (d-SPE) coupled with high performance liquid chromatography (HPLC), yielding satisfactory recoveries (79.03-99.67%) and relative standard deviations (≤5.78%). The limit of detection of AAI was as low as 26.67 µg/L. TMMIPs demonstrate great applicability for fast, selective and eco-friendly extraction of AAI in complicated matrices.
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Affiliation(s)
- Huihuang Xiong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Yong Fan
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Xuejin Mao
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Lan Guo
- Jiangxi Province Key Laboratory of Modern Analytical Science, Nanchang University, Nanchang 330031, China
| | - Aiping Yan
- Jiangxi Province Key Laboratory of Modern Analytical Science, Nanchang University, Nanchang 330031, China
| | - Xian Guo
- College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Yiqun Wan
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; Jiangxi Province Key Laboratory of Modern Analytical Science, Nanchang University, Nanchang 330031, China.
| | - Hao Wan
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
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25
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Zhang Q, Xiao W, Wu Y, Fan Y, Zou W, Xu K, Yuan Y, Mao X, Wang Y. A simple, environmental-friendly and reliable d-SPE method using amino-containing metal-organic framework MIL-125-NH 2 to determine pesticide residues in pomelo samples from different localities. Food Chem 2022; 372:131208. [PMID: 34601418 DOI: 10.1016/j.foodchem.2021.131208] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 09/16/2021] [Accepted: 09/20/2021] [Indexed: 01/18/2023]
Abstract
A simple, environmentally-friendly and reliable method was developed to simultaneously monitor the residue of methyl 1-naphthalene acetate, parathion-methyl, fenitrothion, bromophos and phenthoate in pomelo by using dispersive solid-phase extraction technique (d-SPE). In this method, these target analytes were captured by MIL-125-NH2 and detected by GC-MS/MS. The key parameters of d-SPE were optimized by the single factor experiment. Under the optimized conditions, a good determination coefficient (R2 > 0.9922) and extraction recoveries (64.7-116.8%) are obtained. The limit of detections (0.03-1.07 ng/g) is lower than the MRLs in citrus fruits established by EU (10-15000 ng/g) and China (10-10000 ng/g). The precisions of intra-day and inter-day are 1.3-8.9% and 3.8-14.9%, respectively. In addition, the sorbent MIL-125-NH2 is stable and can be reused at least eight times. These results prove the established method is efficient and reliable to detect the pesticide residues in pomelo.
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Affiliation(s)
- Qingqing Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; College of Food Science, Nanchang University, Jiangxi, China
| | - Weiming Xiao
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Yuqin Wu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; College of Food Science, Nanchang University, Jiangxi, China
| | - Yunxue Fan
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; College of Food Science, Nanchang University, Jiangxi, China
| | - Wenhaotian Zou
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; College of Food Science, Nanchang University, Jiangxi, China
| | - Kang Xu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; College of Food Science, Nanchang University, Jiangxi, China
| | - Yi Yuan
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; College of Food Science, Nanchang University, Jiangxi, China
| | - Xuejin Mao
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
| | - Yuanxing Wang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; College of Food Science, Nanchang University, Jiangxi, China.
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26
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Elfadil D, Palmieri S, Della Pelle F, Sergi M, Amine A, Compagnone D. Enzyme inhibition coupled to molecularly imprinted polymers for acetazolamide determination in biological samples. Talanta 2021; 240:123195. [PMID: 34990987 DOI: 10.1016/j.talanta.2021.123195] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 12/27/2021] [Accepted: 12/28/2021] [Indexed: 11/17/2022]
Abstract
Several methods involving molecularly imprinted polymers (MIPs) devoted to extracting and analyzing sulfonamides from different matrices are reported in literature; however, the unresolved analytical issue is obtaining intra-class selectivity between sulfonamides. Here is presented for the first time a method coupling MIPs and enzymatic inhibition assay for the sensitive and selective determination of acetazolamide (ACZ) in biological samples. The MIPs were synthesized by thermal initiated polymerization in acetone, using acrylamide as functional monomer, ethylene glycol dimethacrylate as cross-linker and ACZ as template molecule. The developed MIPs/enzymatic inhibition based rapid colorimetric method was applied for the determination of ACZ in biological samples. The MIPs were used as sorbent phase in dispersive solid-phase extraction (MIPs-dSPE), and the optimal working parameters were selected. Liquid chromatography-tandam mass spectrometry (LC-MS/MS) analysis confirmed the MIPs ability to extract ACZ. Finally, to obtain a selective and sensitive method, the MIPs-dSPE was combined with an enzymatic inhibition colorimetric assay based on the carbonic anhydrase, an enzyme inhibited by specific sulfonamides. The developed combined method allowed the determination of ACZ in serum, blood and Diamox (a drug containing ACZ), with good recovery (85-96%). Furthermore, a significant correlation with LC-MS/MS analysis was achieved, with relative error ≤15%. In the proposed strategy, the double selectivity giving by MIPs and enzymatic inhibition allowed to obtain a method able to determine selectively ACZ in biological and pharmaceutical samples quantitatively.
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Affiliation(s)
- Dounia Elfadil
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, via Renato Balzarini 1, 64100, Teramo, Italy; Laboratory of Process Engineering and Environment, Faculty of Sciences and Techniques, Hassan II University of Casablanca, Mohammedia, Morocco
| | - Sara Palmieri
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, via Renato Balzarini 1, 64100, Teramo, Italy
| | - Flavio Della Pelle
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, via Renato Balzarini 1, 64100, Teramo, Italy
| | - Manuel Sergi
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, via Renato Balzarini 1, 64100, Teramo, Italy
| | - Aziz Amine
- Laboratory of Process Engineering and Environment, Faculty of Sciences and Techniques, Hassan II University of Casablanca, Mohammedia, Morocco.
| | - Dario Compagnone
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, via Renato Balzarini 1, 64100, Teramo, Italy.
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27
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Liu J, Feng W, Tian M, Hu L, Qu Q, Yang L. Titanium dioxide-coated core-shell silica microspheres-based solid-phase extraction combined with sheathless capillary electrophoresis-mass spectrometry for analysis of glyphosate, glufosinate and their metabolites in baby foods. J Chromatogr A 2021; 1659:462519. [PMID: 34763240 DOI: 10.1016/j.chroma.2021.462519] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 08/08/2021] [Accepted: 08/29/2021] [Indexed: 10/20/2022]
Abstract
Because of their extremely low amount in complex samples, it is quite challenging to accurate determine residues of phosphorus-containing amino-acid-like herbicides (PAAHs) in food products. Here we develop novel core-shell mesoporous silica (CSMS) microspheres coated by titanium dioxide (CSMS@TiO2) for extraction and enrichment of PAAHs in baby foods. After the dispersive solid phase extraction (d-SPE), sheathless capillary electrophoresis-mass spectrometry (sheathless CE-MS) is utilized to achieve efficient separation and sensitive detection. The synthesized CSMS@TiO2 composites are characterized by various spectroscopic techniques, proving TiO2 is uniformly distributed onto the channel surface of CSMS. The composites have essential features that are favorable for adsorption of the analytes on the material for d-SPE, including uniform diameter (1.0 μm with a shell thickness of 133 nm), large perpendicular mesopores (15.6 nm), high surface area (101.1 m2/g) and large pore volume (0.4 cm3/g). Taking glyphosate, glufosinate and their main metabolites (aminomethylphosphonic acid and 3-methylphosphinicopropionic acid) as analytes, selective and efficient enrichment is achieved by CSMS@TiO2-based d-SPE through the affinity interaction between titanium dioxide and phosphate groups. Sensitive detection of target compounds is achieved with low limits of quantitation (LOQs) between 0.3-1.6 ng/mL and excellent inter/intra-day repeatability. The compounds in nine different commercial baby foods from local markets are analyzed using the proposed method. Good recoveries of 82.3-102.6% are achieved with low RSDs (n = 5) of 2.1-8.3%. Our study indicates that the proposed CSMS@TiO2-based d-SPE combined with sheathless CE-MS is an accurate and reliable approach for sensitive determination of trace-amount PAAHs and their metabolites in complex samples.
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Affiliation(s)
- Jianing Liu
- Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin Province 130024, P R China
| | - Wenxia Feng
- Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin Province 130024, P R China; Institute of Agricultural Products Quality Safety and Inspection and Testing Center of Pingliang City, Gansu Province 744000, P R China
| | - Miaomiao Tian
- Institute of Chemical and Industrial Bioengineering, Jilin Engineering Normal University, Changchun, Jilin Province 130052, P R China
| | - Lihuan Hu
- Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin Province 130024, P R China
| | - Qishu Qu
- Key Laboratory of Functional Molecule Design and Interface Process, School of Materials and Chemical Engineering, Anhui Jianzhu University, Hefei city 230601, P R China.
| | - Li Yang
- Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin Province 130024, P R China.
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28
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Sun W, Hu X, Meng X, Xiang Y, Ye N. Molybdenum disulfide-graphene oxide composites as dispersive solid-phase extraction adsorbents for the enrichment of four paraben preservatives in cosmetics. Mikrochim Acta 2021; 188:256. [PMID: 34268616 DOI: 10.1007/s00604-021-04908-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 06/21/2021] [Indexed: 10/20/2022]
Abstract
Molybdenum disulfide-graphene oxide composite (MoS2/GO) was synthesized and used as the adsorbent in dispersive solid-phase extraction. Four paraben preservatives, namely, methylparaben, ethylparaben, propylparaben, and butylparaben, were enriched with MoS2/GO and determined by ultra-high-performance liquid chromatography. Molybdenum disulfide was intercalated into graphene oxide layers to reduce self-aggregation by using the solvothermal method. The experimental results indicated that the as-prepared MoS2/GO composite exhibited great enrichment capability toward those four paraben preservatives, and the adsorption time was 10 min and the elution time was as short as 1 min. The mechanism of MoS2/GO composite and parabens is attributed to hydrogen bonding and electrostatic attraction. The relative standard deviation (RSD, n = 9) of this method was below 7.6%. Limits of detection and limits of quantification were in the range 0.4-2.3 ng/mL and 1.4-7.6 ng/mL, respectively. The recoveries obtained from the parabens of cosmetic sample were in the range 91.3-124% with RSDs below 10%. The developed method has great potential for the determination of emerging contaminants with low cost and high sensitivity.
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Affiliation(s)
- Wenjing Sun
- Department of Chemistry, Capital Normal University, Beijing, 100048, People's Republic of China
| | - Xiaoyu Hu
- Department of Chemistry, Capital Normal University, Beijing, 100048, People's Republic of China
| | - Xiaoyang Meng
- Department of Chemistry, Capital Normal University, Beijing, 100048, People's Republic of China
| | - Yuhong Xiang
- Department of Chemistry, Capital Normal University, Beijing, 100048, People's Republic of China.
| | - Nengsheng Ye
- Department of Chemistry, Capital Normal University, Beijing, 100048, People's Republic of China.
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29
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Zhang S, Hua Z, Zhao H, Yao W, Wu Y, Fu D, Sun J. Defective Zr-based metal-organic frameworks as sorbent for the determination of fungicides in environmental water samples by rapid dispersive micro-solid-phase extraction coupled to liquid chromatography/mass spectrometry. J Sep Sci 2021; 44:2113-2120. [PMID: 33721403 DOI: 10.1002/jssc.202001240] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 03/06/2021] [Accepted: 03/07/2021] [Indexed: 12/22/2022]
Abstract
In this work, defective Zr-based metal-organic framework was successfully synthesized and evaluated as a dispersive micro-solid-phase extraction sorbent for efficient preconcentration and determination of fungicides in complex water samples. The defective Zr-based metal-organic framework crystal with increased adsorption capacity was successfully synthesized by employing formic acid as the modulator. The extraction conditions, including the pH, extraction time, desorption solvent and desorption time, were comprehensively investigated. Under optimum conditions, it was found that dispersive micro-solid-phase extraction method, coupled with liquid chromatography/mass spectrometry, exhibited a good linear relationship with correlation coefficients greater than 0.9980. The relative standard deviations of inter-day and intra-day precisions ranged from 2.6 to 9.2% and the limits of detection ranged from 0.004 to 0.036 μg/L. These merits, combined with their satisfactory recoveries (>80%), suggested the great potential of defective Zr-based metal-organic framework as a new adsorbent for efficient extraction of trace fungicides. This method exhibits good application potential for the pretreatment of fungicides from environmental water samples.
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Affiliation(s)
- Suling Zhang
- College of Materials & Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310018, P. R. China
| | - Ziluo Hua
- College of Materials & Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310018, P. R. China
| | - Hongting Zhao
- College of Materials & Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310018, P. R. China.,School of Environmental and Chemical Engineering, Foshan University, Foshan, Guangdong, 528011, P. R. China
| | - Weixuan Yao
- Key Laboratory of Drug Prevention and Control Technology of Zhejiang Province, Department of Criminal Science and Technology, Zhejiang Police College, Hangzhou, 310053, P. R. China
| | - Yuanzhao Wu
- Key Laboratory of Drug Prevention and Control Technology of Zhejiang Province, Department of Criminal Science and Technology, Zhejiang Police College, Hangzhou, 310053, P. R. China
| | - Defeng Fu
- Institute of Forensic Science of Zhejiang Public provincial Security Bureau, Hangzhou, 310019, P. R. China
| | - Jiancong Sun
- Institute of Forensic Science of Zhejiang Public provincial Security Bureau, Hangzhou, 310019, P. R. China
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Pang YH, Lv ZY, Sun JC, Yang C, Shen XF. Collaborative compounding of metal-organic frameworks for dispersive solid-phase extraction HPLC-MS/MS determination of tetracyclines in honey. Food Chem 2021; 355:129411. [PMID: 33770620 DOI: 10.1016/j.foodchem.2021.129411] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 02/14/2021] [Accepted: 02/16/2021] [Indexed: 10/22/2022]
Abstract
Metal-organic frameworks (MOFs), a sort of dispersive solid-phase extraction (d-SPE) material, has shown considerable prospects in the pretreatment of food, biological and other complex samples. Herein, we developed a method for compounding MOFs for d-SPE and trace determination of tetracyclines (TCs) in honey. When the compounding ratio of MIL-101 (Cr), MIL-100 (Fe) and MIL-53 (Al) was 7:1:2, adsorption-extraction was effective. Followed by high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS), the limits of detection were 0.073-0.435 ng/g and the limits of quantitation ranged from 0.239 to 1.449 ng/g for oxytetracycline, tetracycline, chlortetracycline and doxycycline. The method was applied to four kinds of honey samples with recoveries from 88.1% to 126.2%. The compounding of MOFs provides a strategy for purification and multi-target extraction from complex food matrices by d-SPE.
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Affiliation(s)
- Yue-Hong Pang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
| | - Zhi-Yang Lv
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Ji-Cheng Sun
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Cheng Yang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Xiao-Fang Shen
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
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31
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Wang Z, Liu S, Zhao X, Tian B, Sun X, Zhang J, Gao Y, Shi H, Wang M. Enantioseparation and stereoselective dissipation of the novel chiral fungicide pydiflumetofen by ultra-high-performance liquid chromatography tandem mass spectrometry. Ecotoxicol Environ Saf 2021; 207:111221. [PMID: 32911181 DOI: 10.1016/j.ecoenv.2020.111221] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 08/20/2020] [Accepted: 08/23/2020] [Indexed: 06/11/2023]
Abstract
Pydiflumetofen is a novel and efficient broad-spectrum chiral fungicide consisting of a pair of enantiomers. A simple and sensitive chiral analytical method was established to determine the enantiomers of this chiral fungicide in food and environmental samples by ultra-high-performance liquid chromatography tandem triple quadrupole mass spectrometry (UHPLC-MS/MS) using QuEChERS method coupled with octadecylsilane-dispersive solid-phase extraction (C18-dSPE) as extraction procedure. The specific optical rotation and the absolute configuration of the enantiomers were identified by polarimetry and electronic circular dichroism (ECD). The elution order of the pydiflumetofen enantiomers on Lux Cellulose-2 was S-(-)-pydiflumetofen and R-(+)-pydiflumetofen. The average recoveries of eleven matrices ranged from 71.3% to 107.4%. The intraday relative standard deviations (RSDs) were less than 11.8%, and the interday RSDs were less than 12.6% for the two enantiomers. Stereoselective dissipation in pakchoi and soil were observed: S-(-)-pydiflumetofen was degraded faster than R-(+)-pydiflumetofen in pakchoi, causing the enantiomer fraction (EF) of the enantiomers to change from 0.50 to 0.42 in 7 days. However, R-(+)-pydiflumetofen was degraded faster than S-(-)-pydiflumetofen in soil, causing the EF of the enantiomers to change from 0.49 to 0.52 in 21 days. This study provides a method for monitoring pydiflumetofen enantiomer residues, which is crucial for improving risk assessments and the development of chiral pesticides.
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Affiliation(s)
- Zhen Wang
- Department of Pesticide Science, College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, 210095, China
| | - Shiling Liu
- Department of Pesticide Science, College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xuejun Zhao
- Department of Pesticide Science, College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, 210095, China
| | - Baohua Tian
- Fungicide Development Manager, Syngenta (China) Investment Co.,Ltd, Shanghai, 200120, China
| | - Xiaofang Sun
- Department of Pesticide Science, College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jing Zhang
- Department of Pesticide Science, College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yingying Gao
- Department of Pesticide Science, College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, 210095, China
| | - Haiyan Shi
- Department of Pesticide Science, College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, 210095, China
| | - Minghua Wang
- Department of Pesticide Science, College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, 210095, China.
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Ma L, Zhao L, Wang J, Pan C, Liu C, Wang Y, Ding Q, Feng Y, Zhou H, Jia L. Determination of 12 Carbamate Insecticides in Typical Vegetables and Fruits by Rapid Multi-Plug Filtration Cleanup and Ultra-Performance Liquid Chromatography/Tandem Mass Spectrometry Detection. J Chromatogr Sci 2020; 58:109-116. [PMID: 31711217 DOI: 10.1093/chromsci/bmz081] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 07/26/2019] [Accepted: 08/30/2019] [Indexed: 11/12/2022]
Abstract
A multiresidue method for determining 12 carbamate pesticides in purple cabbage, orange, watermelon, cucumber, cowpea and Lactuca sativa L. employing multi-plug filtration cleanup (m-PFC) and ultra-performance liquid chromatography coupled with electrospray ionization tandem mass spectrometry (UPLC-ESI-MS/MS) was developed. M-PFC was carried out by cleanup at dispersive solid phase extraction (d-SPE), one m-PFC tip-filtration, two m-PFC tip-filtration and other methods (1-3 m-PFC cleanups). Results demonstrated that filtration simplified the cleanup method compared with d-SPE and other m-PFC methods (1-3 m-PFC cleanups). The method validation results showed that the method was linear, selective and accurate. The limits of quantification (LOQs) were 0.05-5.0 μg/kg, and the recoveries were in the range of 70.1-119.9% in different matrices. Although matrix effects were observed, they were successfully compensated using matrix-matched calibration. Finally, the developed method was successfully applied to detect pesticides in real samples.
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Affiliation(s)
- Lili Ma
- Engineering Research Center of Food Safety Analysis, Beijing Center for Physical and Chemical Analysis, No. 27, West Third Ring Road, Haidian District, Beijing 100089, China
| | - Liuwei Zhao
- Institute of Apiculture Research, Chinese Academy of Agricultural Sciences, No. 1, Beigou Xiangshan, Haidian District, Beijing 100093, China and
| | - Jiaqi Wang
- Engineering Research Center of Food Safety Analysis, Beijing Center for Physical and Chemical Analysis, No. 27, West Third Ring Road, Haidian District, Beijing 100089, China
| | - Canping Pan
- College of Science, China Agricultural University, No. 2, Yuanmingyuan West Road, Haidian District, Beijing 100193, China
| | - Cong Liu
- Engineering Research Center of Food Safety Analysis, Beijing Center for Physical and Chemical Analysis, No. 27, West Third Ring Road, Haidian District, Beijing 100089, China
| | - Yu Wang
- Engineering Research Center of Food Safety Analysis, Beijing Center for Physical and Chemical Analysis, No. 27, West Third Ring Road, Haidian District, Beijing 100089, China
| | - Qi Ding
- Engineering Research Center of Food Safety Analysis, Beijing Center for Physical and Chemical Analysis, No. 27, West Third Ring Road, Haidian District, Beijing 100089, China
| | - Yuechao Feng
- Engineering Research Center of Food Safety Analysis, Beijing Center for Physical and Chemical Analysis, No. 27, West Third Ring Road, Haidian District, Beijing 100089, China
| | - Huijuan Zhou
- Engineering Research Center of Food Safety Analysis, Beijing Center for Physical and Chemical Analysis, No. 27, West Third Ring Road, Haidian District, Beijing 100089, China
| | - Li Jia
- Engineering Research Center of Food Safety Analysis, Beijing Center for Physical and Chemical Analysis, No. 27, West Third Ring Road, Haidian District, Beijing 100089, China
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Mao X, Xiao W, Wan Y, Li Z, Luo D, Yang H. Dispersive solid-phase extraction using microporous metal-organic framework UiO-66: Improving the matrix compounds removal for assaying pesticide residues in organic and conventional vegetables. Food Chem 2020; 345:128807. [PMID: 33310261 DOI: 10.1016/j.foodchem.2020.128807] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 11/19/2020] [Accepted: 11/30/2020] [Indexed: 02/07/2023]
Abstract
An efficient dispersive solid-phase extraction method was developed to trace pesticide residues in commonly consumed vegetables. In this method, UiO-66 with uniform micropores was used as sorbent, and gas chromatography-mass spectrometry was applied to detect the pesticides. Thanks to the size sieving action of uniform micropores, UiO-66 directly extracted the target pesticides from vegetable matrices and excluded the relatively large matrix compounds. This well eliminated the matrix effect. The important experimental conditions were evaluated by orthogonal array experimental design. In optimized conditions, good linearity (R2 ≥ 0.99), detection limits (0.4-2.0 ng/g), recoveries (60.9-117.5%) and precision (relativestandarddeviations < 14.6%) were achieved. Moreover, the sorbent UiO-66 can be reused more than 20 times. These demonstrate a simple, reliable and robust method to screen the pesticide residues in vegetables. Furthermore, the validated method was applied to detect the pesticides in various organic and conventional vegetables.
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Affiliation(s)
- Xuejin Mao
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; Jiangxi Province Key Laboratory of Modern Analytical Science, Nanchang University, Nanchang 330031, China
| | - Weiming Xiao
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Yiqun Wan
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; Jiangxi Province Key Laboratory of Modern Analytical Science, Nanchang University, Nanchang 330031, China.
| | - Zhanming Li
- Department of Food Science and Technology, National University of Singapore, Singapore 117542, Singapore
| | - Dongmei Luo
- College of Chemistry and Chemical Engineering, Chifeng University, Chifeng 024000, China
| | - Hongshun Yang
- Department of Food Science and Technology, National University of Singapore, Singapore 117542, Singapore.
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Frugeri PM, da Silva Cavalcanti MH, do Lago AC, Figueiredo EC, Tarley CRT, Wisniewski C, Luccas PO. Magnetic restricted-access carbon nanotubes for the extraction/pre-concentration of organophosphates from food samples followed by spectrophotometric determination. Spectrochim Acta A Mol Biomol Spectrosc 2020; 241:118632. [PMID: 32650243 DOI: 10.1016/j.saa.2020.118632] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 06/16/2020] [Accepted: 06/17/2020] [Indexed: 06/11/2023]
Abstract
In this work, magnetic restricted-access carbon nanotubes (M-RACNTs) were synthesized, characterized and used in the dispersive solid-phase extraction (d-SPE) of organophosphate pesticides (OPPs) from food samples (broccoli, eggplant, cauliflower, and soy milk), followed by spectrophotometric determination in a flow injection analysis system. Fe3O4 nanoparticles were incorporated in the multi-walled carbon nanotubes employing dimethylformamide. The dimethylformamide was used as a solvent in the incorporation process, forming the suspension of both particles. The resulting M-CNTs were covered with an external bovine serum albumin (BSA) layer, chemically crosslinked. M-RACNTs were able to efficiently capture OPPs, excluding about 95% of the proteins from food matrices. The analyses were carried out in a flow injection analysis system (FIA), with the spectrophotometric detection (at 560 nm) of the complex formed by the reaction between OPPs, N-bromosuccinimide and rhodamine B. A fractional factorial design method was used to optimize the experimental parameters. The addition/recovery test showed results from 95.5% to 108.9%. Accuracies were checked by comparing the results obtained with the proposed and standard HPLC methods, which were in agreement. The proposed method was linear from 5 to 90 μg L-1 of OPPs, with limits of detection and quantification of 0.74 and 5 μg L-1 and precision of 3.67%, expressed as relative standard deviation. The pre-concentration factor was about 164 times.
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Affiliation(s)
- Pedro Marcos Frugeri
- Institute of Chemistry, Federal University of Alfenas, 37130-000 Alfenas, MG, Brazil
| | | | - Ayla Campos do Lago
- Institute of Chemistry, Federal University of Alfenas, 37130-000 Alfenas, MG, Brazil; Laboratory of Toxicant and Drug Analyses, Federal University of Alfenas, 37130-000 Alfenas, MG, Brazil
| | - Eduardo Costa Figueiredo
- Laboratory of Toxicant and Drug Analyses, Federal University of Alfenas, 37130-000 Alfenas, MG, Brazil
| | - Cesar Ricardo Teixeira Tarley
- Department of Chemistry, State University of Londrina, Rodovia Celso Garcia Cid, 445, Km 380, Londrina, 86057-970, PR, Brazil
| | - Célio Wisniewski
- Department of Physics, Federal University of Alfenas, 37130-000 Alfenas, MG, Brazil
| | - Pedro Orival Luccas
- Institute of Chemistry, Federal University of Alfenas, 37130-000 Alfenas, MG, Brazil.
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Petrarca MH, Braga PADC, Reyes FGR, Bragotto APA. Hydrophilic interaction liquid chromatography coupled to quadrupole time-of-flight mass spectrometry as a potential combination for the determination of sulfonamide residues in complex infant formula matrices. J Chromatogr A 2020; 1633:461606. [PMID: 33128969 DOI: 10.1016/j.chroma.2020.461606] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/30/2020] [Accepted: 10/04/2020] [Indexed: 10/23/2022]
Abstract
An accurate, sensitive and selective analytical method is proposed for sulfonamide residues analysis in infant formulas based on hydrophilic interaction liquid chromatography (HILIC) and quadrupole time-of-flight mass spectrometry in full scan mode. The sample preparation approach involves low-temperature lipid precipitation followed by dispersive solid-phase extraction with PSA and C18 sorbents, which was successfully optimized using Plackett-Burman design. In order to achieve high analytical sensitivity, the influence of HILIC conditions on sulfonamide ionization was investigated, such as the mobile phase composition, buffer concentration, and sample diluent for injection. The method performance characteristics, including linearity (range 5-120 µg kg-1), reliable limits of quantification (between 5 and 20 µg kg-1), recovery (72.9-109.2%) and precision (coefficient of variation values ≤ 19.8%) under repeatability and within-laboratory reproducibility conditions, were in accordance with the Codex Alimentarius Commission CAC/GL 71-2009 for quantitative analytical methods for veterinary drug residues in foods. Moreover, adequate identification of the compounds was provided with accurate mass measurement of both precursor and fragment ions in one single run. Finally, the developed method was applied to thirty-five powdered milk-based infant formula samples available in the Brazilian market.
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Affiliation(s)
- Mateus Henrique Petrarca
- Department of Food Science, School of Food Engineering, University of Campinas (UNICAMP), Rua Monteiro Lobato, 80, 13083-862, Campinas, SP, Brazil.
| | - Patrícia Aparecida de Campos Braga
- Department of Food Science, School of Food Engineering, University of Campinas (UNICAMP), Rua Monteiro Lobato, 80, 13083-862, Campinas, SP, Brazil
| | - Felix Guillermo Reyes Reyes
- Department of Food Science, School of Food Engineering, University of Campinas (UNICAMP), Rua Monteiro Lobato, 80, 13083-862, Campinas, SP, Brazil
| | - Adriana Pavesi Arisseto Bragotto
- Department of Food Science, School of Food Engineering, University of Campinas (UNICAMP), Rua Monteiro Lobato, 80, 13083-862, Campinas, SP, Brazil
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Tanveer ZI, Huang Q, Liu L, Jiang K, Nie D, Pan H, Chen Y, Liu X, Luan L, Han Z, Wu Y. Reduced graphene oxide-zinc oxide nanocomposite as dispersive solid-phase extraction sorbent for simultaneous enrichment and purification of multiple mycotoxins in Coptidis rhizoma (Huanglian) and analysis by liquid chromatography tandem mass spectrometry. J Chromatogr A 2020; 1630:461515. [PMID: 32911177 DOI: 10.1016/j.chroma.2020.461515] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/29/2020] [Accepted: 08/30/2020] [Indexed: 12/21/2022]
Abstract
In the current study, a robust dispersive solid-phase extraction (dSPE) strategy using reduced graphene oxide-zinc oxide (rGO-ZnO) nanocomposite as the sorbent was proposed for separation, purification and enrichment of 12 mycotoxins in Coptidis rhizoma (Huanglian). The targeted mycotoxins included aflatoxin B1, aflatoxin B2, aflatoxin G1, aflatoxin G2, aflatoxin M1, alternariol-methylether, mycophenolic acid, ochratoxin A, penitrem A, nivalenol, zearalenone and zearalanone. The rGO-ZnO nanocomposite was successfully synthesized through hydrothermal process by a modified Hummers method, and further characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), FTIR spectroscopy, ultraviolet-visible spectroscopy and X-ray diffraction (XRD). Several key parameters affecting the performance of the dSPE approach were extensively investigated, and after optimization, acetonitrile/water/formic acid (80/19/1, v/v/v) as the extraction solution, 2% acetonitrile as the adsorption solution, 15 mg rGO-ZnO as the sorbent, n-hexane as the washing solution, and methanol/formic acid (99/1, v/v) as the desorption solution presented an excellent purification and enrichment efficiency. Under the optimal dSPE procedure followed by analysis with ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS), adequate linearity (R2 ≥ 0.991), high sensitivity (limit of quantification in the range of 0.09-0.41 µg kg-1), acceptable recovery (70.3-105.7%) and satisfactory precision (RSD 1.4-15.0%) were obtained. The analysis of 12 selected mycotoxins was also carried out in real Coptidis rhizoma (Huanglian) samples for applicability evaluation of the established method.
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Affiliation(s)
- Zafar Iqbal Tanveer
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
| | - Qingwen Huang
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China; Institute for Agro-food Standards and Testing Technology, Shanghai Key Laboratory of Protected Horticultural Technology, Laboratory of Quality and Safety Risk Assessment for Agro-products (Shanghai), Ministry of Agriculture, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Li Liu
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
| | - Keqiu Jiang
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
| | - Dongxia Nie
- Institute for Agro-food Standards and Testing Technology, Shanghai Key Laboratory of Protected Horticultural Technology, Laboratory of Quality and Safety Risk Assessment for Agro-products (Shanghai), Ministry of Agriculture, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Hongye Pan
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
| | - Yong Chen
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
| | - Xuesong Liu
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
| | - Lianjun Luan
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
| | - Zheng Han
- Institute for Agro-food Standards and Testing Technology, Shanghai Key Laboratory of Protected Horticultural Technology, Laboratory of Quality and Safety Risk Assessment for Agro-products (Shanghai), Ministry of Agriculture, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China.
| | - Yongjiang Wu
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China.
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37
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Yağci Ö, Akkaya E, Bakirdere S. Nano-sized magnetic Ni particles based dispersive solid-phase extraction of trace Cd before the determination by flame atomic absorption spectrometry with slotted quartz tube: a new, accurate, and sensitive quantification method. Environ Monit Assess 2020; 192:583. [PMID: 32803620 DOI: 10.1007/s10661-020-08548-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 08/11/2020] [Indexed: 06/11/2023]
Abstract
In this study, a new analytical strategy was developed to determine trace cadmium in aqueous samples with high sensitivity and accuracy. A combination of magnetic nickel nanoparticles (Ni-MNPs) based dispersive solid-phase extraction (DSPE) and flame atomic absorption spectrometry fitted with a slotted quartz tube (SQT-FAAS) lowered the detection limit of cadmium. The magnetic Ni nanoparticles were synthesized, characterized, and thoroughly optimized in a stepwise approach. The quartz tube was custom cut in the laboratory to suit the specifics of the flame burner. Using the optimized conditions, a limit of detection value of 0.58 μg/L and limit of quantification value of 1.93 μg/L were obtained. To demonstrate accuracy and applicability of the developed method, well water samples were analyzed for their Cd content, and matrix effect on the extraction yield was investigated. The percent recovery results calculated ranged from 93.8 to 108.2%, with corresponding standard deviation values ranging from 1.7 to 7.7. These results established the developed method as sensitive, accurate, and precise for determination of cadmium at trace levels.
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Affiliation(s)
- Özlem Yağci
- Department of Physics, Yildiz Technical University, 34349, İstanbul, Turkey
| | - Erhan Akkaya
- Department of Chemistry, Yildiz Technical University, 34349, İstanbul, Turkey
| | - Sezgin Bakirdere
- Department of Chemistry, Yildiz Technical University, 34349, İstanbul, Turkey.
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Wang D, Luo X, Wang M, Zhou K, Xia Z. Selective separation and purification of polydatin by molecularly imprinted polymers from the extract of Polygoni Cuspidati Rhizoma et Radix, rats' plasma and urine. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1156:122307. [PMID: 32835909 DOI: 10.1016/j.jchromb.2020.122307] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 07/29/2020] [Accepted: 08/04/2020] [Indexed: 12/19/2022]
Abstract
Molecularly imprinted polymers (MIPs) based on polydatin were prepared by precipitation polymerization method. Synthesis process of MIPs was optimized by discussion of functional monomers, porogens and the molar ratio of template- functional monomer-cross linker. Then, MIPs were prepared with polydatin as the template, 4-vinyl pyridine as the functional monomer, ethylene glycol dimethyl acrylate as the cross linker, acetonitrile as the porogen and the molar ratio of template-monomer-cross linker at 1:10:20. Scanning electron microscopy and Fourier transform infrared spectrometer were used to inspect macroscale and chemical bond of MIPs. Adsorption capability and selectivity of MIPs to polydatin were investigated by carrying out the static, dynamic and selective experiments. The results showed MIPs performed high adsorption ability and selectivity to polydatin, indicating MIPs could be used to separate and enrich polydatin from the complex systems. Finally, MIPs were applied as the adsorbent for isolation and purification of polydatin from the extract of Polygoni Cuspidati Rhizoma et Radix, rats' plasma and urine samples. MIPs were successfully used to separate polydatin from the Polygoni Cuspidati Rhizoma et Radix and recovery ranged from 89.2% to 91.6%. The maximum concentration of polydatin in rats' plasma and urine samples was 2.84 ± 0.0748 µg mL-1 and 2.64 ± 0.485 µg mL-1, respectively. Moreover, to compare with the MIPs method, organic solvent methods were used to analyze the polydatin in rats' plasma and urine samples. The results illustrated MIPs method was effective and selective for enrichment of polydatin from the medicinal plants and biological samples.
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Boontongto T, Burakham R. Evaluation of metal-organic framework NH 2-MIL-101(Fe) as an efficient sorbent for dispersive micro-solid phase extraction of phenolic pollutants in environmental water samples. Heliyon 2019; 5:e02848. [PMID: 31763487 PMCID: PMC6861588 DOI: 10.1016/j.heliyon.2019.e02848] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Revised: 09/14/2019] [Accepted: 11/08/2019] [Indexed: 01/23/2023] Open
Abstract
This work proposes an application of amine-functionalized metal-organic framework (NH2-MIL-101(Fe)) as sorbent for dispersive micro-solid phase extraction (D-μSPE) of ten priority phenolic pollutants. The sorbent was simply synthesized under facile condition. The entire D-μSPE process was optimized by studying the effect of experimental parameters affecting the extraction recovery of the target analytes. The final extract was analyzed using high performance liquid chromatography with photodiode array detector. Under the optimum condition, the proposed procedure can be applied for wide linear calibration ranges between 1.25–5000 μg L−1 with the correlation coefficients of greater than 0.9900. The limits of detection (LODs) and limits of quantitation (LOQs) were in the ranges of 0.4–9.5 μg L−1 and 1.25–30 μg L−1, respectively. The precision evaluated in terms of the relative standard deviations (RSDs) of the intra- and inter-day determinations of the phenol compounds at their LOQ concentrations were below 13.9% and 12.2%, respectively. High enrichment factors up to 120 were reached. The developed method has been successfully applied to determine phenol residues in environmental water samples. The satisfactory recoveries obtained by spiking phenol standards at two different concentrations (near LOQs and 5 times as high as LOQs) ranged from 68.4–114.4%. The results demonstrate that the NH2-MIL-101(Fe) material is promising sorbent in the D-μSPE of phenolic pollutants.
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Affiliation(s)
- Tittaya Boontongto
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Rodjana Burakham
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand
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40
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Wang Z, Wang X, Tian H, Wei Q, Liu B, Bao G, Liao M, Peng J, Huang X, Wang L. High through-put determination of 28 veterinary antibiotic residues in swine wastewater by one-step dispersive solid phase extraction sample cleanup coupled with ultra-performance liquid chromatography-tandem mass spectrometry. Chemosphere 2019; 230:337-346. [PMID: 31108445 DOI: 10.1016/j.chemosphere.2019.05.047] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 04/25/2019] [Accepted: 05/05/2019] [Indexed: 06/09/2023]
Abstract
We developed a QuEChERS (quick, easy, cheap, effective, rugged and safe) method for the high through-put determination of 28 common veterinary antibiotics in swine wastewater using one-step dispersive solid-phase extraction (d-SPE) for sample cleanup and ultra-performance liquid chromatography-tandem mass spectrometry for detection. The orthogonal test method was used to systematically investigate the parameters that might influence d-SPE efficiency. The optimal d-SPE procedure utilized 40 mg primary secondary amine sorbent and 3 g L-1 Na2EDTA. The recoveries ranged from 50 to 100% with relative standard deviations <20% for all target analytes except for enrofloxacin and chlortetracycline. The limits of detection and limits of quantification for all the analytes ranged from 0.002 to 0.200 ng mL-1 and 0.005-0.500 ng mL-1, respectively. The developed method was successfully applied to the analysis of 28 antibiotic residues in swine wastewater from 10 pig farms located in central China. Fourteen antibiotics including 4 sulfonamides (sulfadiazine, sulfamerazine, sulfamonomethoxine and trimethoprim), 5 fluoroquinolones (norfloxacin, ciprofloxacin, pefloxacin, enrofloxacin, and ofloxacin), 1 lincosamide (lincomycin) and 4 tetracyclines (doxycycline, tetracycline, oxytetracycline, and chlortetracycline) were detected at levels ranging from 0.0560 to 1793 ng mL-1. Our results demonstrated that the optimized method is a simple but reliable analytical technique for the routine monitoring of veterinary antibiotics in swine wastewater. Swine wastewater samples that we analyzed from 10 pig farms in Jiangxi Province, China were highly contaminated and pose a serious threat to ecosystems and to public health.
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Affiliation(s)
- Zhong Wang
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, China
| | - XiaoYing Wang
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Huan Tian
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, China
| | - QingHui Wei
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, China
| | - BaoSheng Liu
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, China
| | - GuangMing Bao
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, China
| | - MengLin Liao
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, China
| | - JianLing Peng
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, China
| | - XiaoQing Huang
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, China
| | - LiQi Wang
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, China.
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de Oliveira LG, Ramkumar A, Moloney M, Kurz MHS, Gonçalves FF, Prestes OD, Danaher M. Vibrational extraction QuEChERS for analysis of antiparasitic agents in fish by liquid chromatography coupled with tandem mass spectrometry. Anal Bioanal Chem 2019; 411:6913-6929. [PMID: 31418049 DOI: 10.1007/s00216-019-02062-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 07/23/2019] [Accepted: 07/31/2019] [Indexed: 12/23/2022]
Abstract
A method was developed for the analysis of 22 antiparasitic residues belonging to the benzoylurea, organophosphate, pyrimidinamine, pyrethrin and pyrethroid classes in salmon by liquid chromatography coupled with tandem mass spectrometry. Samples were extracted with acetonitrile-water as the extraction solvent with use of a vibrational shaking apparatus with a ceramic homogenizer. After extraction, the acetonitrile extracts were cleaned up by incubation at low temperature (-20 °C, 1 h) to remove fat, followed by dispersive solid-phase extraction using Z-Sep+ and primary-secondary amine as sorbents. Validation was performed following the 2002/657/EC and SANTE/11813/2017 guidelines. The trueness of the method ranged from 87% to 121% and precision ranged from 4.1% to 23.7%, with the exception of cyphenothrin, dicyclanil and azamethiphos. The method developed is particularly advantageous because the use of a vibrational shaker allows unattended extraction of samples and eliminates a laborious tissue disruption step, which increases sample throughput in the laboratory. The sample preparation and chromatographic separations can be performed in 5 and 4 h, respectively, for 36 samples. Graphical abstract.
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Affiliation(s)
- Lenise Guimarães de Oliveira
- Food Safety Department, Teagasc Food Research Centre, Ashtown, Dublin 15, Ireland. .,Laboratory for Analysis of Residues and Contaminants, Post-graduate Program in Technological and Environmental Chemistry, Chemistry and Food School, Federal University of Rio Grande, Santo Antônio da Patrulha, RS, 95500-000, Brazil.
| | - Abilasha Ramkumar
- Food Safety Department, Teagasc Food Research Centre, Ashtown, Dublin 15, Ireland
| | - Mary Moloney
- Food Safety Department, Teagasc Food Research Centre, Ashtown, Dublin 15, Ireland
| | - Márcia Helena Scherer Kurz
- Laboratory for Analysis of Residues and Contaminants, Post-graduate Program in Technological and Environmental Chemistry, Chemistry and Food School, Federal University of Rio Grande, Santo Antônio da Patrulha, RS, 95500-000, Brazil
| | - Fábio Ferreira Gonçalves
- Laboratory for Analysis of Residues and Contaminants, Post-graduate Program in Technological and Environmental Chemistry, Chemistry and Food School, Federal University of Rio Grande, Santo Antônio da Patrulha, RS, 95500-000, Brazil
| | - Osmar Damian Prestes
- Laboratory of Pesticides Residue Analysis, Chemistry Department, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil
| | - Martin Danaher
- Laboratory for Analysis of Residues and Contaminants, Post-graduate Program in Technological and Environmental Chemistry, Chemistry and Food School, Federal University of Rio Grande, Santo Antônio da Patrulha, RS, 95500-000, Brazil
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Casado N, Pérez-Quintanilla D, Morante-Zarcero S, Sierra I. Bi-functionalized mesostructured silicas as reversed-phase/strong anion-exchange sorbents. Application to extraction of polyphenols prior to their quantitation by UHPLC with ion-trap mass spectrometry detection. Mikrochim Acta 2019; 186:164. [PMID: 30725330 DOI: 10.1007/s00604-019-3267-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Accepted: 01/18/2019] [Indexed: 01/12/2023]
Abstract
Hybrid mesostructured silicas with wormhole-like pore structure were synthesized and bi-functionalized with n-octyl (C8) and quaternary ammonium (NR4+) groups to obtain new sorbent materials for dispersive solid-phase extraction (dSPE) of polyphenols. Due to their nature of being both a reversed-phase and a strong anion-exchanger, the materials display mixed-mode retention mechanism. During the synthesis, the functionalization conditions were varied to obtain materials with different functionalization degree. The resulting materials (denoted as HMS-RPC8-SAX-1, HMS-RPC8-SAX-2 and HMS-RPC8-SAX-3) show high surface area, wormhole-like framework and controlled pore size. They were evaluated for multicomponent extraction of 22 polyphenols, including phenolic acids, flavonoids and stilbenes, from spiked juice samples. The sample extracts were analyzed by ultra-high performance liquid chromatography coupled to ion-trap tandem mass spectrometry. The adsorption capability, the amount of sorbent, the eluent and the elution volume were optimized. Best performance was achieved by using HMS-RPC8-SAX-2, which is the material with the highest fraction of NR4+ groups. This material has a large extraction capability and provides high recovery values of the target analytes (70-101%) as a result of its hydrophobic and anion-exchange interactions. The detection limits for polyphenols in juice range from 1 to 560 ng mL-1. Graphical abstract Schematic presentation of dispersive solid-phase extraction of polyphenols from juice samples using a novel sorbent based on the bi-functionalization of mesostructured silica with n-octyl and quaternary ammonium groups, followed by ultra-high-performance liquid chromatography coupled to tandem mass spectrometry (UHPLC-MS/MS) analysis. Due to the sorbent nature of being both a reversed-phase and strong anion-exchanger, the material displays mixed mode retention mechanism that improves its extraction capability.
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Wu C, Wang L, Li H, Yu S. Determination of 4(5)-methylimidazole in foods and beverages by modified QuEChERS extraction and liquid chromatography-tandem mass spectrometry analysis. Food Chem 2018; 280:278-285. [PMID: 30642498 DOI: 10.1016/j.foodchem.2018.12.065] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Revised: 11/14/2018] [Accepted: 12/13/2018] [Indexed: 10/27/2022]
Abstract
The determination of carcinogenic 4(5)-methylimidazole (4-MeI) in complex matrices at trace levels is a challenge because of its higher polarity and weaker column retention capability. Here, we proposed a novel method for the quantification of 4-MeI in various foods and beverages using modified quick, easy, cheap, effective, rugged, and safe (QuEChERS) extraction with liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis. The evaluated QuEChERS extraction with LC-MS/MS method showed excellent linearity (1-200 μg/L, with correlation coefficient (R2) > 0.999), trueness (91-113%), and precision (relative standard deviation (RSD) ≤ 12.3%), but low matrix effect (92-108%) for cola, tea, beer, coffee beverage, bread, biscuit and instant coffee. The expanded measurement uncertainty was less than 34.4% at 95% confidence level. The proposed method can be successfully applied to determine 4-MeI in 28 commercial foods and beverages purchased from local market. Therefore, we believe this method is likely to provide a potential for 4-MeI determination in practical application.
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Affiliation(s)
- Chunjian Wu
- College of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Guangzhou 510640, China
| | - Li Wang
- Guangzhou Quality Supervision and Testing Institute, Guangzhou 511447, China
| | - He Li
- College of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Guangzhou 510640, China
| | - Shujuan Yu
- College of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Guangzhou 510640, China.
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44
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Zhong F, Zhang X, Li G, Tang Z, Han X, Cheng J. A new multistep purification method for simultaneously determining organic ultraviolet absorbents in fish tissue. Environ Monit Assess 2018; 191:16. [PMID: 30539331 DOI: 10.1007/s10661-018-7139-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 12/03/2018] [Indexed: 06/09/2023]
Abstract
More information is required to improve our understanding of the presence of organic ultraviolet absorbents (UVAs) in organisms and the risks posed to biota. Effective removal of lipids in the determination of UVAs in biological samples is a sample-processing bottleneck. In this study, we optimized a multistep purification method for fish tissue samples extracted using an ultrasonic-assisted extraction method. The purification method involved performing Florisil column chromatography, redissolving the extract in ethanol, and then performing dispersive solid-phase extraction using primary and secondary amine, Florisil, and C18 silica sorbents. The purified samples were analyzed by gas chromatography-mass spectrometry. The method was effective and reliable, and was used to detect trace concentrations (ng/g) of 12 UVAs in fish tissue samples. The mean recovery range of the UVAs in fish tissue extracts was 65.4-118%, and the method detection limit range was 0.20-2.50 ng/g dw. The validated method was used to analyze 12 UVAs in fish samples from a local supermarket.
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Affiliation(s)
- Fuyong Zhong
- College of Life and Environmental Sciences, Minzu University of China, Beijing, 100081, China
- MOE Key Laboratory of Resources and Environmental System Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, China
| | - Xianhui Zhang
- Agricultural Product Quality Safety Inspection and Testing Center of Huainan, Huainan, 232007, Anhui, China
| | - Guanghui Li
- China Merchants Ecological Environmental Protection Technology Co., Ltd., Chongqing, 400067, China
| | - Zhenwu Tang
- College of Life and Environmental Sciences, Minzu University of China, Beijing, 100081, China.
- MOE Key Laboratory of Resources and Environmental System Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, China.
| | - Xue Han
- MOE Key Laboratory of Resources and Environmental System Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, China
| | - Jiali Cheng
- Key Laboratory of Trace Element Nutrition of National Health Commission, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing, 100021, China.
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Panjan P, Monasterio RP, Carrasco-Pancorbo A, Fernandez-Gutierrez A, Sesay AM, Fernandez-Sanchez JF. Development of a folic acid molecularly imprinted polymer and its evaluation as a sorbent for dispersive solid-phase extraction by liquid chromatography coupled to mass spectrometry. J Chromatogr A 2018; 1576:26-33. [PMID: 30253912 DOI: 10.1016/j.chroma.2018.09.037] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 06/06/2018] [Accepted: 09/17/2018] [Indexed: 10/28/2022]
Abstract
This work shows the development of a molecularly imprinted polymer to determine folic acid (FA) in food extracts by using dispersive solid-phase extraction and liquid chromatography coupled to mass spectrometry (LC-MS). Herewith, combinations of monomers (methacrylic acid (MAA), 4-vinylpyridine (4VPy) and vinylbenzyl trimethylammonium chloride (VBTMAC)) and crosslinkers (ethylene glycol dimethacrylate (EGDMA) and divinyl benzene (DVB)) were tested in appropriate solvents. Isotherm tests revealed that the MIP with the highest affinity was obtained by combining VBTMAC and EGDMA. Having checked the appropriate template-monomer-crosslinker ratio, the FA MIP was analyzed for its kinetic and equilibrium binding properties, proving very high affinity (more than 2.5 mmol g-1) and MIP/NIP ratio (up to 37). The FA MIP was used to selectively isolate the compound of interest from lettuce and cookies matrices using a dispersive solid-phase extraction protocol (which exhibited appropriate recovery and repeatability, ≥79.50% and ≤13.41 (%RSD in terms of area values), respectively, as well as absence of matrix effect); the resulting extracts were analyzed by a rapid and reliable LC-MS method.
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Affiliation(s)
- Peter Panjan
- Measurement Technology Unit (MITY), University of Oulu, Kajaani, Finland
| | - Romina P Monasterio
- Instituto de Biología Agrícola de Mendoza (IBAM), UNCuyo, CONICET. Alt. Brown 500, Chacras de Coria, Mendoza, Argentina
| | - Alegría Carrasco-Pancorbo
- Department of Analytical Chemistry, University of Granada, Avd. Fuentenueva s/n, 18071, Granada, Spain
| | | | - Adama M Sesay
- Measurement Technology Unit (MITY), University of Oulu, Kajaani, Finland.
| | - Jorge F Fernandez-Sanchez
- Department of Analytical Chemistry, University of Granada, Avd. Fuentenueva s/n, 18071, Granada, Spain; NanoMyP(®), Nanomateriales y Polimeros S.L, Spin-Off company of the UGR, BIC building, Avd. Innovacion 1, E-18016, Granada, Spain.
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46
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Huset CA, M Barry K. Quantitative determination of perfluoroalkyl substances (PFAS) in soil, water, and home garden produce. MethodsX 2018; 5:697-704. [PMID: 29998069 DOI: 10.1016/j.mex.2018.06.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 06/25/2018] [Indexed: 01/23/2023] Open
Abstract
This data article includes details on the simple and efficient analytical methods used to measure perfluoroalkyl substances (PFASs) in water, soil, and produce from home gardens in Minnesota. PFASs in water were analyzed via direct injection. PFASs were extracted from homogenized soil using sonication, and from produce using dispersive solid phase extraction. Isotope dilution was used for quantitation in all methods. The method performance parameters and quality control measures are described. The methods described are applicable for a PFAS ranging from C4-C8 and the produce method was used on a wide variety of produce. For further details and experimental findings, please refer to the article “Occurrence of perfluoroalkyl substances (PFAS) in garden produce at homes with a history of PFAS-contaminated drinking water” The key benefits of this method are: This method adapts dispersive solid phase extraction for the analysis of PFAS in produce. The method can be used to analyze PFAS ranging from 4 to 8 carbons in a variety of produce types.
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Li J, Liu J, Lu W, Gao F, Wang L, Ma J, Liu H, Liao C, Chen L. Speciation analysis of mercury by dispersive solid-phase extraction coupled with capillary electrophoresis. Electrophoresis 2018; 39:1763-1770. [PMID: 29683516 DOI: 10.1002/elps.201800024] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 04/01/2018] [Accepted: 04/16/2018] [Indexed: 01/21/2023]
Abstract
A pretreatment method of dispersive solid-phase extraction (DSPE) along with back-extraction followed by CE-UV detector was developed for the determination of mercury species in water samples. Sulfhydryl-functionalized SiO2 microspheres (SiO2 -SH) were synthesized and used as DSPE adsorbents for selective extraction and enrichment of three organic mercury species namely ethylmercury (EtHg), methylmercury (MeHg), and phenylmercury (PhHg), along with L-cysteine (L-cys) containing hydrochloric acid as back-extraction solvent. Several main extraction parameters were systematically investigated including sample pH, amount of adsorbent, extraction and back-extraction time, volume of eluent, and concentration of hydrochloric acid. Under optimal conditions, good linearity was achieved with correlation coefficients over 0.9990, in the range of 4-200 μg/L for EtHg, and 2-200 μg/L for MeHg and PhHg. The LODs were obtained of 1.07, 0.34, and 0.24 μg/L for EtHg, MeHg, and PhHg, respectively, as well as the LOQs were 3.57, 1.13, and 0.79 μg/L, respectively, with enrichment factors ranging from 109 to 184. Recoveries were attained with tap and lake water samples in a range of 62.3-107.2%, with relative standard deviations of 3.5-10.1%. The results proved that the method of SiO2 -SH based DSPE coupled with CE-UV was a simple, rapid, cost-effective, and eco-friendly alternative for the determination of mercury species in water samples.
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Affiliation(s)
- Jinhua Li
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering Technology of Shandong Province, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, P. R. China
| | - Junying Liu
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering Technology of Shandong Province, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, P. R. China
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, P. R. China
| | - Wenhui Lu
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering Technology of Shandong Province, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, P. R. China
| | - Fangfang Gao
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering Technology of Shandong Province, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, P. R. China
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, P. R. China
| | - Liyan Wang
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering Technology of Shandong Province, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, P. R. China
| | - Jiping Ma
- School of Environmental and Municipal Engineering, Qingdao Technological University, Qingdao, P. R. China
| | - Huitao Liu
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, P. R. China
| | - Chunyang Liao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, P. R. China
| | - Lingxin Chen
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering Technology of Shandong Province, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, P. R. China
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, P. R. China
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Petrarca MH, Godoy HT. Gas chromatography-mass spectrometry determination of polycyclic aromatic hydrocarbons in baby food using QuEChERS combined with low-density solvent dispersive liquid-liquid microextraction. Food Chem 2018; 257:44-52. [PMID: 29622229 DOI: 10.1016/j.foodchem.2018.02.135] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 02/09/2018] [Accepted: 02/25/2018] [Indexed: 11/19/2022]
Abstract
A sensitive GC-MS method is reported for the determination of twelve polycyclic aromatic hydrocarbons (PAHs) in baby food. The sample preparation involves QuEChERS extraction combined with low-density solvent dispersive liquid-liquid microextraction (LDS-DLLME) and ultra-low temperature (-80 °C). Plackett-Burman screening design was employed to identify the main sample preparation variables that affect the extraction efficiency, such as the volume of toluene used in LDS-DLLME. The suitability of proposed method was verified by analytical selectivity, linearity in solvent and matrix-matched calibration curves and adequate recoveries (72-112%) and precision (RSD values ≤11%), under repeatability and within-laboratory reproducibility conditions. High analytical sensitivity was achieved for the monitoring of PAHs at the strict limit of 1 µg kg-1 fixed by the European Commission for baby foods. The validated method was applied to thirty-two commercial baby food samples, and the investigated PAHs were not detected in any sample.
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Affiliation(s)
- Mateus Henrique Petrarca
- Department of Food Science,Faculty of Food Engineering,University of Campinas (UNICAMP),13083-862 Campinas,SP,Brazil.
| | - Helena Teixeira Godoy
- Department of Food Science,Faculty of Food Engineering,University of Campinas (UNICAMP),13083-862 Campinas,SP,Brazil.
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49
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Wu X, Yang M, Zeng H, Xi X, Zhang S, Lu R, Gao H, Zhou W. Effervescence-assisted dispersive solid-phase extraction using ionic-liquid-modified magnetic β-cyclodextrin/attapulgite coupled with high-performance liquid chromatography for fungicide detection in honey and juice. J Sep Sci 2016; 39:4422-4428. [PMID: 27670749 DOI: 10.1002/jssc.201600596] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 08/15/2016] [Accepted: 09/16/2016] [Indexed: 11/06/2022]
Abstract
In this study, a simple effervescence-assisted dispersive solid-phase extraction method was developed to detect fungicides in honey and juice. Most significantly, an innovative ionic-liquid-modified magnetic β-cyclodextrin/attapulgite sorbent was used because its large specific surface area enhanced the extraction capacity and also led to facile separation. A one-factor-at-a-time approach and orthogonal design were employed to optimize the experimental parameters. Under the optimized conditions, the entire extraction procedure was completed within 3 min. In addition, the calibration curves exhibited good linearity, and high enrichment factors were achieved for pure water and honey samples. For the honey samples, the extraction efficiencies for the target fungicides ranged from 77.0 to 94.3% with relative standard deviations of 2.3-5.44%. The detection and quantitation limits were in the ranges of 0.07-0.38 and 0.23-1.27 μg/L, respectively. Finally, the developed technique was successfully applied to real samples, and satisfactory results were achieved. This analytical technique is cost-effective, environmentally friendly, and time-saving.
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Affiliation(s)
- Xiaoling Wu
- Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Miyi Yang
- Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Haozhe Zeng
- Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Xuefei Xi
- Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Sanbing Zhang
- Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Runhua Lu
- Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Haixiang Gao
- Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Wenfeng Zhou
- Department of Applied Chemistry, China Agricultural University, Beijing, China
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50
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González-Sálamo J, Socas-Rodríguez B, Hernández-Borges J, Rodríguez-Delgado MÁ. Core-shell poly(dopamine) magnetic nanoparticles for the extraction of estrogenic mycotoxins from milk and yogurt prior to LC-MS analysis. Food Chem 2016; 215:362-8. [PMID: 27542487 DOI: 10.1016/j.foodchem.2016.07.154] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 07/27/2016] [Accepted: 07/28/2016] [Indexed: 11/26/2022]
Abstract
In this work, core-shell poly(dopamine) magnetic nanoparticles synthesized in our laboratory have been applied as dispersive solid-phase extraction (dSPE) sorbent for the extraction of a group of six mycotoxins of interest including zearalenone, α-zearalanol, β-zearalanol, α-zearalenol, β-zearalenol and zearalanone, from complex matrices such as milk (whole and skimmed cow milk and semi-skimmed goat milk) and yogurt (an unsweetened natural yogurt) prior to their LC-MS analysis. 17β-estradiol-D5 was used as internal standard. The procedure includes a deproteinization step prior to the extraction procedure. Matrix-matched calibration and a recovery study were carried out in the selected matrices, providing good linearity, relative recovery values in the range 70-120% with RSDs lower than 16% and LODs between 0.21 and 4.77μg/L for milk samples and between 0.29 and 4.54μg/kg for yogurt samples.
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Affiliation(s)
- Javier González-Sálamo
- Departamento de Química, Unidad Departamental de Química Analítica, Facultad de Ciencias, Sección de Química, Universidad de La Laguna (ULL), Avenida Astrofísico Fco. Sánchez, s/n°. 38206 San Cristóbal de La Laguna, Tenerife, Islas Canarias, Spain
| | - Bárbara Socas-Rodríguez
- Departamento de Química, Unidad Departamental de Química Analítica, Facultad de Ciencias, Sección de Química, Universidad de La Laguna (ULL), Avenida Astrofísico Fco. Sánchez, s/n°. 38206 San Cristóbal de La Laguna, Tenerife, Islas Canarias, Spain
| | - Javier Hernández-Borges
- Departamento de Química, Unidad Departamental de Química Analítica, Facultad de Ciencias, Sección de Química, Universidad de La Laguna (ULL), Avenida Astrofísico Fco. Sánchez, s/n°. 38206 San Cristóbal de La Laguna, Tenerife, Islas Canarias, Spain.
| | - Miguel Ángel Rodríguez-Delgado
- Departamento de Química, Unidad Departamental de Química Analítica, Facultad de Ciencias, Sección de Química, Universidad de La Laguna (ULL), Avenida Astrofísico Fco. Sánchez, s/n°. 38206 San Cristóbal de La Laguna, Tenerife, Islas Canarias, Spain
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