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Li G, Cui Y, Yang X, Xin X, Yan H, Han D. Fabrication of molecularly imprinted carbon nanotubes integrating ionic liquids for efficient detection of perfluoroalkyl carboxylic acid in environmental water. Talanta 2024; 275:126017. [PMID: 38626499 DOI: 10.1016/j.talanta.2024.126017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 03/27/2024] [Accepted: 03/29/2024] [Indexed: 04/18/2024]
Abstract
It is extremely significant while challenging to accurately detect low-levels of perfluoroalkyl carboxylic acid compounds (PFCAs) in environmental water. Herein, adopting perfluorotetradecanoic acid as the dummy template, selective molecularly imprinted composites (CNTs@ILs@MIPs) grafted carbon nanotubes integrating hydrophilic ionic liquids were successfully prepared via surface imprinting and dummy-template imprinting techniques. The obtained CNTs@ILs@MIPs were applied as selective extraction adsorbent for specifically extract PFCAs in environmental water coupled with gas chromatography-mass spectrometry quantification. Detailed studies were conducted on the main preparation parameters and extraction conditions. The CNTs@ILs@MIPs displayed excellent adsorptivity, and the established method exhibited low LODs (0.60-1.64 ng L-1), wide linearity with R2 above 0.9994, and satisfactory adsorption recoveries (80.5-112.5%) for seven PFCAs. This proposed method provides a new applicable approach for the detection of targeted pollutants in environmental water by utilizing the high affinity and recognition ability of molecularly imprinted carbon nanotube functional materials modified with ionic liquids.
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Affiliation(s)
- Gang Li
- Hebei Key Laboratory of Public Health Safety, School of Life Sciences, College of Public Health, Hebei University, Baoding, 071002, China
| | - Yahan Cui
- Hebei Key Laboratory of Public Health Safety, School of Life Sciences, College of Public Health, Hebei University, Baoding, 071002, China
| | - Xiaonan Yang
- Hebei Key Laboratory of Public Health Safety, School of Life Sciences, College of Public Health, Hebei University, Baoding, 071002, China
| | - Xuelian Xin
- Hebei Key Laboratory of Public Health Safety, School of Life Sciences, College of Public Health, Hebei University, Baoding, 071002, China
| | - Hongyuan Yan
- Hebei Key Laboratory of Public Health Safety, School of Life Sciences, College of Public Health, Hebei University, Baoding, 071002, China; State Key Laboratory of New Pharmaceutical Preparations and Excipients, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Chemistry and Materials Science, Hebei University, Baoding, 071002, China.
| | - Dandan Han
- Hebei Key Laboratory of Public Health Safety, School of Life Sciences, College of Public Health, Hebei University, Baoding, 071002, China.
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Li M, Li P, Han Y, Han D, Yan H. Rapid and inexpensive nylon-66-filter solid-phase extraction followed by gas chromatography tandem mass spectrometry for analyzing perfluorinated carboxylic acids in milk. J Chromatogr A 2022; 1677:463288. [DOI: 10.1016/j.chroma.2022.463288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 06/19/2022] [Accepted: 06/26/2022] [Indexed: 11/26/2022]
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3
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An overview of analytical methods for enantiomeric determination of chiral pollutants in environmental samples and biota. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116370] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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4
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Choppari T, Gunnam S, Chennuru LN, Cherla PM, Talluri MVNK. Evaluation of Chiral Liquid Chromatographic Method for Separation and Quantification of Isomers of Brivaracetam. J Chromatogr Sci 2021; 60:250-259. [PMID: 34173643 DOI: 10.1093/chromsci/bmab075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 01/13/2021] [Accepted: 05/29/2021] [Indexed: 11/15/2022]
Abstract
A selective, sensitive and robust chiral analytical method was developed for the quantification of Brivaracetam (BRV) and its three isomers. Systematic chiral chromatographic elution process was executed in different modes on chiral columns of polysaccharide based to attain the finest condition. The analytical method was developed by utilizing immobilized polysaccharide chiral column (CHIRALPAK IG-U) with reversed phase under isocratic condition containing acetonitrile and 10 mM ammonium bicarbonate in the proportion of 40:60 (v/v). The mobile phase flow rate and column temperature were monitored at 0.3 mLmin-1 and 25°C with a resolution of more than 2.0. The eluted components from the column were processed at 212 nm UV detection. The limit of detection and limit of quantification values of BRV, 2R, 4S-Isomer, 2R, 4R-Isomer and 2S, 4S-Isomers were found to be 0.0066/0.02, 0.0035/0.0107, 0.0036/0.0109 and 0.005/0.0152 µgml-1 respectively. Precision, linearity, accuracy and robustness were conducted according to ICH guidelines and the findings were within the acceptable limits. The proposed analytical method was found to be precise, accurate and specific for the quantification of enantiomer and its diastereomers for drug product and drug substance of BRV.
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Affiliation(s)
- Thirupathi Choppari
- Analytical & Separation Services, Daicel Chiral Technologies (India) Pvt Ltd, Survey No. 542/2, IKP Knowledge Park, Turkapally, Shamirpet Mandal, Medchal-Malkajgiri District, Hyderabad-500101, Telangana, India
| | - Srinivasu Gunnam
- Analytical & Separation Services, Daicel Chiral Technologies (India) Pvt Ltd, Survey No. 542/2, IKP Knowledge Park, Turkapally, Shamirpet Mandal, Medchal-Malkajgiri District, Hyderabad-500101, Telangana, India
| | - Lakshmi Narayana Chennuru
- Analytical & Separation Services, Daicel Chiral Technologies (India) Pvt Ltd, Survey No. 542/2, IKP Knowledge Park, Turkapally, Shamirpet Mandal, Medchal-Malkajgiri District, Hyderabad-500101, Telangana, India
| | - Parameswara Murthy Cherla
- Department of Chemistry, University college of science, Osmania University campus, Hyderabad-500007, Telangana, India
| | - M V N Kumar Talluri
- Analytical & Separation Services, Daicel Chiral Technologies (India) Pvt Ltd, Survey No. 542/2, IKP Knowledge Park, Turkapally, Shamirpet Mandal, Medchal-Malkajgiri District, Hyderabad-500101, Telangana, India
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Gu L, Wu F, Yang S, Xu F, Dai X, Jiang Y, Fang X, Yu S, Ding CF. Direct distinction of ibuprofen and flurbiprofen enantiomers by ion mobility mass spectrometry of their ternary complexes with metal cations and cyclodextrins in the gas phase. J Sep Sci 2021; 44:2474-2482. [PMID: 33823081 DOI: 10.1002/jssc.202100025] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/30/2021] [Accepted: 04/01/2021] [Indexed: 12/23/2022]
Abstract
Enantiomeric drugs are widely used and play important roles in pharmaceuticals. Ion mobility spectrometry coupled with mass spectrometry technology provides a unique method for distinguishing the enantiomeric drugs, enantiomeric identification, and quantitation in the gas phase. In this study, enantiomeric molecules of ibuprofen and flurbiprofen were clearly recognized by forming host-guest complex ions using trapped ion mobility time-of-flight mass spectrometry. Ternary complex ions can be produced easily by electrospray ionization of the mixed solutions of ibuprofen, cyclodextrins, and CaCl2 , LiCl, or NaCl, as well as flurbiprofen, cyclodextrins, and CaCl2 . The relative contents of different chiral ibuprofens in a mixed solution were also quantitatively measured. This new method is a simple, effective, and a convenient enantioselective analysis method.
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Affiliation(s)
- Liancheng Gu
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, P. R. China.,Department of Chemistry, Fudan University, Shanghai, P. R. China
| | - Fangling Wu
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, P. R. China
| | - Shutong Yang
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, P. R. China.,Department of Chemistry, Fudan University, Shanghai, P. R. China
| | - Fuxing Xu
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, P. R. China
| | - Xinhua Dai
- National Institute of Metrology, Beijing, P. R. China
| | - You Jiang
- National Institute of Metrology, Beijing, P. R. China
| | - Xiang Fang
- National Institute of Metrology, Beijing, P. R. China
| | - Shaoning Yu
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, P. R. China
| | - Chuan-Fan Ding
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, P. R. China
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Liu Y, Li A, Buchanan S, Liu W. Exposure characteristics for congeners, isomers, and enantiomers of perfluoroalkyl substances in mothers and infants. ENVIRONMENT INTERNATIONAL 2020; 144:106012. [PMID: 32771830 DOI: 10.1016/j.envint.2020.106012] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 07/23/2020] [Accepted: 07/24/2020] [Indexed: 05/24/2023]
Abstract
Per- and polyfluoroalkyl substances (PFASs) are ubiquitous in the environment, making it inevitable for humans to be exposed to these pollutants. The exposure begins while in utero and continues in infancy, during the potentially most sensitive early stages of life. This review summarizes the current knowledge on pre- and neo-natal exposures based on more than 200 articles published from 2000 to date. All relevant biological matrices used in the cited studies were included, such as maternal blood, umbilical cord blood, breast milk, placenta, amniotic fluid, fetal organs, newborns' dried blood spots, and infant serum. We show that such exposures are geographically global with significant discrepancies among countries and continents, and that while the levels of major legacy PFASs (PFOS and PFOA) have declined since 2000, those of others may have not. We also show that levels of PFOS and PFOA exceed those of some major environmental toxins, such as p,p'-DDE, BDE-47, PCB-153, PBB-153, and OH-PBDEs in maternal blood. Given that the behavior and potential effects have an origin in molecular structure, biomonitoring and research at the levels of isomers and enantiomers are critically important. Through critical analysis of these works, we summarize the major achievements, consensus, and the deficiencies of existing research. To our knowledge, this is the first review on the overall internal exposure status of mothers and infants to PFASs during pregnancy and lactation.
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Affiliation(s)
- Yingxue Liu
- Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, Institution of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - An Li
- School of Public Health, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Susan Buchanan
- School of Public Health, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Weiping Liu
- Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, Institution of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
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Sanganyado E, Lu Z, Liu W. Application of enantiomeric fractions in environmental forensics: Uncertainties and inconsistencies. ENVIRONMENTAL RESEARCH 2020; 184:109354. [PMID: 32182482 DOI: 10.1016/j.envres.2020.109354] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 03/01/2020] [Accepted: 03/04/2020] [Indexed: 05/27/2023]
Abstract
The assumption that only biological processes are enantioselective introduces challenges in the reliability of enantioselective analysis as a tool for discriminating biotic and abiotic processes in the environmental fate of chiral pollutants. Enantioselectivity does not depend on the nature of the fate process a chiral contaminant undergoes but on the interaction of the chiral contaminant with homochirality inducing external agents (e.g. chiral molecules, macromolecules or surfaces such as enzymes, blood plasma, proteins, chiral co-pollutants, humic acid and soil organominerals). The environmental behavior of a chiral contaminant is difficult to anticipate because the interactions between the chiral contaminants and the homochirality inducing external agents is often complex and strongly influenced by local environment conditions such as pH, redox conditions, organic carbon, organic nitrogen, humic acid, and redox conditions. Furthermore, the use of enantioselective analysis in environmental forensics depend on the adequate separation and accurate identification and quantification of the enantiomers of the chiral contaminant. Matrix effects, instrument effects, inadequate enantioselective separation, and poor quantification techniques introduce uncertainties in the determination of enantiomeric composition. Here we present the weaknesses of this assumption and recommend using enantiomeric fractions as chemical markers of biotransformation with caution. We recommend using stable isotopes, including abiotic controls to determine if enantioselective sorption occurs, and determining stability of enantiomers in solvent or at elevated temperatures to account for confounding factors arising from matrix effects, enantioselective abiotic processes, and enantiomerization due solvent and thermal lability of the chiral analyte, respectively to maintain the integrity of the utility of enantiomeric composition changes as an environmental forensics tool.
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Affiliation(s)
- Edmond Sanganyado
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, Guangdong, 515063, China
| | - Zhijiang Lu
- College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Wenhua Liu
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, Guangdong, 515063, China.
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Hu Z, Li Q, Xu L, Zhang W, Zhang Y. Determination of perfluoroalkyl carboxylic acids in environmental water samples by dispersive liquid–liquid microextraction with GC-MS analysis. J LIQ CHROMATOGR R T 2020. [DOI: 10.1080/10826076.2020.1728311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Zhixiong Hu
- Key Laboratory for Deep Processing of Major Grain and Oil (Wuhan Polytechnic University), Ministry of Education, Wuhan, China
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Qian Li
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan, China
| | - Li Xu
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan, China
| | - Weinong Zhang
- Key Laboratory for Deep Processing of Major Grain and Oil (Wuhan Polytechnic University), Ministry of Education, Wuhan, China
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Yanpeng Zhang
- Key Laboratory for Deep Processing of Major Grain and Oil (Wuhan Polytechnic University), Ministry of Education, Wuhan, China
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
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