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Villarreal-Lucio DS, Vargas-Berrones KX, Díaz de León-Martínez L, Flores-Ramíez R. Molecularly imprinted polymers for environmental adsorption applications. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:89923-89942. [PMID: 36370309 DOI: 10.1007/s11356-022-24025-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 11/01/2022] [Indexed: 06/16/2023]
Abstract
Molecular imprinting polymers (MIPs) are synthetic materials with pores or cavities to specifically retain a molecule of interest or analyte. Their synthesis consists of the generation of three-dimensional polymers with specific shapes, arrangements, orientations, and bonds to selectively retain a particular molecule called target. After target removal from the binding sites, it leaves empty cavities to be re-occupied by the analyte or a highly related compound. MIPs have been used in areas that require high selectivity (e.g., chromatographic methods, sensors, and contaminant removal). However, the most widely used application is their use as a highly selective extraction material because of its low cost, easy preparation, reversible adsorption and desorption, and thermal, mechanical, and chemical stability. Emerging pollutants are traces of substances recently found in wastewater, river waters, and drinking water samples that represent a special concern for human and ecological health. The low concentration in which these pollutants is found in the environment, and the complexity of their chemical structures makes the current wastewater treatment not efficient for complete degradation. Moreover, these substances are not yet regulated or controlled for their discharge into the environment. According to the literature, MIPs, as a highly selective adsorbent material, are a promising approach for the quantification and monitoring of emerging pollutants in complex matrices. Therefore, the main objective of this work was to give an overview of the actual state-of-art of applications of MIPs in the recovery and concentration of emerging pollutants.
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Affiliation(s)
- Diana Samantha Villarreal-Lucio
- Centro de Investigación Aplicada en Ambiente Y Salud (CIAAS), Avenida Sierra Leona No. 550, CP 78210, Colonia Lomas Segunda Sección, San Luis Potosí, S.L.P, México
| | - Karla Ximena Vargas-Berrones
- Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, Av. Manuel Nava No. 6, C.P. 78260, San Luis Potosí, S.L.P, México
| | - Lorena Díaz de León-Martínez
- Centro de Investigación Aplicada en Ambiente Y Salud (CIAAS), Avenida Sierra Leona No. 550, CP 78210, Colonia Lomas Segunda Sección, San Luis Potosí, S.L.P, México
| | - Rogelio Flores-Ramíez
- Centro de Investigación Aplicada en Ambiente Y Salud (CIAAS), Avenida Sierra Leona No. 550, CP 78210, Colonia Lomas Segunda Sección, San Luis Potosí, S.L.P, México.
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Bongers IEA, van de Schans MGM, Nibbeling CVM, Elbers IJW, Berendsen BJA, Zuidema T. A single method to analyse residues from five different classes of prohibited pharmacologically active substances in milk. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2021; 38:1717-1734. [PMID: 34237239 DOI: 10.1080/19440049.2021.1944674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
In the European Union, the use of veterinary drugs belonging to the A6 group is prohibited in food-producing animals according to Commission Regulation (EU) No. 2010/37. The aim of this study was to improve the analytical control strategy by developing a single method to analyse residues of prohibited pharmacologically active substances in milk. For this, a single method was developed to analyse 16 prohibited pharmacologically active substances belonging to five different substance classes at required or recommended levels: nitroimidazoles at 3 μg kg-1, nitrofurans at 0.5 μg kg-1, chloramphenicol at 0.1 μg kg-1, dapsone at 5 μg kg-1 and chlorpromazine at 1 μg kg-1. Milk sample preparation started with an acid hydrolysis combined with a derivatisation. These steps were followed by a clean-up consisting of a dispersive solid-phase extraction and a liquid-liquid extraction. Finally, the sample extracts were analysed by liquid chromatography combined with tandem mass spectrometry, operating alternately in the positive and negative mode. The method was fully validated according to Commission Decision 2002/657/EC for bovine milk and additionally validated for caprine milk. The validation proved that the method is highly effective to detect and confirm all 16 substances in bovine and caprine milk and, additionally to quantify 15 of these substances in bovine milk and 13 of these substances in caprine milk. This study resulted in a new multi-class method to detect, quantify and confirm the identity of 16 prohibited pharmacologically active substances belonging to five different substance classes in two types of milk.
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Affiliation(s)
- Irma E A Bongers
- Wageningen Food Safety Research (WFSR), Wageningen University & Research, Wageningen, The Netherlands
| | - Milou G M van de Schans
- Wageningen Food Safety Research (WFSR), Wageningen University & Research, Wageningen, The Netherlands
| | - Coen V M Nibbeling
- Wageningen Food Safety Research (WFSR), Wageningen University & Research, Wageningen, The Netherlands
| | - Ingrid J W Elbers
- Wageningen Food Safety Research (WFSR), Wageningen University & Research, Wageningen, The Netherlands
| | - Bjorn J A Berendsen
- Wageningen Food Safety Research (WFSR), Wageningen University & Research, Wageningen, The Netherlands
| | - Tina Zuidema
- Wageningen Food Safety Research (WFSR), Wageningen University & Research, Wageningen, The Netherlands
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Rapid and selective extraction of norfloxacin from milk using magnetic molecular imprinting polymers nanoparticles. Food Chem 2021; 353:129464. [PMID: 33740511 DOI: 10.1016/j.foodchem.2021.129464] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 02/02/2021] [Accepted: 02/22/2021] [Indexed: 11/22/2022]
Abstract
The magnetic molecular imprinting polymers nanoparticles (MMIPs NPs) for the extraction of norfloxacin (NOR) were prepared by self-polymerization of dopamine onto the surface of (3-Aminopropyl)triethoxysilane (APTES)-modified Fe3O4 NPs. The MMIPs NPs were characterized by FT-IR spectroscopy, XRD, VSM and TEM. The characterization results show that the MMIPs NPs possess superparamagnetic characteristic with the saturated magnetization value of 38.6 emu/g, and the average particle size of about 14.3 nm. Furthermore, the adsorption performance of the MMIPs NPs was evaluated by the static, dynamic, selective adsorption and reusability experiments. The adsorption capacity of MMINs NPs for NOR is 14.2 mg/g with an imprinted factor of 2.1. About 82.4-102.4% of the added NOR (20, 40, 60 μg/mL) were recovered from fortified milk samples with MMIPs NPs as sorbent. Moreover, the MMIPs NPs can be reused for at least six times.
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Three-template magnetic molecular imprinted polymer for the rapid separation and specific recognition of illegal cooking oil markers. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105052] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Gao W, Li J, Li P, Huang Z, Cao Y, Liu X. Preparation of Magnetic Molecularly Imprinted Polymer (MMIP) Nanoparticles (NPs) for the Selective Extraction of Tetracycline from Milk. ANAL LETT 2019. [DOI: 10.1080/00032719.2019.1698049] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Wanru Gao
- College of Food Science and Technology, Hunan Provincial Key Laboratory of Food Science and Biotechnology, Hunan Agricultural University, Changsha, China
| | - Jiayin Li
- College of Food Science and Technology, Hunan Provincial Key Laboratory of Food Science and Biotechnology, Hunan Agricultural University, Changsha, China
| | - Pao Li
- College of Food Science and Technology, Hunan Provincial Key Laboratory of Food Science and Biotechnology, Hunan Agricultural University, Changsha, China
| | - Zhao Huang
- College of Food Science and Technology, Hunan Provincial Key Laboratory of Food Science and Biotechnology, Hunan Agricultural University, Changsha, China
| | - Yanan Cao
- College of Food Science and Technology, Hunan Provincial Key Laboratory of Food Science and Biotechnology, Hunan Agricultural University, Changsha, China
| | - Xia Liu
- College of Food Science and Technology, Hunan Provincial Key Laboratory of Food Science and Biotechnology, Hunan Agricultural University, Changsha, China
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Exploring Matrix Effects on Binding Properties and Characterization of Cotinine Molecularly Imprinted Polymer on Paper-Based Scaffold. Polymers (Basel) 2019; 11:polym11030570. [PMID: 30960554 PMCID: PMC6474114 DOI: 10.3390/polym11030570] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 03/09/2019] [Accepted: 03/20/2019] [Indexed: 12/02/2022] Open
Abstract
Commercially available sorbent materials for solid-phase extraction are widely used in analytical laboratories. However, non-selective binding is a major obstacle for sample analysis. To overcome this problem, molecularly imprinted polymers (MIPs) were used as selective adsorbent materials prior to determining target analysts. In this study, the use of non-covalent molecularly imprinted polymers (MIPs) for cotinine adsorption on a paper-based scaffold was studied. Fiberglass paper was used as a paper scaffold for cotinine-selective MIP adsorption with the use of 0.5% agarose gel. The effects of salt, pH, sample matrix, and solvent on the cotinine adsorption and extraction process were investigated. Under optimal conditions, the adsorption isotherm of synthesized MIPs increased to 125.41 µg/g, whereas the maximum adsorption isotherm of non-imprinted polymers (NIPs) was stable at 42.86 µg/g. The ability of the MIP paper scaffold to absorb cotinine in water medium was approximately 1.8–2.8-fold higher than that of the NIP scaffold. From Scatchard analysis, two dissociation constants of MIPs were calculated to be 2.56 and 27.03 µM. Nicotine, myosmine, and N-nitrosonornicotine were used for selectivity testing, and the calculated selectivity factor of cotinine to nicotine, myosmine, and N-nitrosonornicotine was 1.56, 2.69, and 2.05, respectively. Overall, the MIP paper scaffold is promising for simple onsite sampling of cotinine and can be used to assess tobacco smoke exposure.
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Razavipanah I, Alipour E, Deiminiat B, Rounaghi GH. A novel electrochemical imprinted sensor for ultrasensitive detection of the new psychoactive substance “Mephedrone”. Biosens Bioelectron 2018; 119:163-169. [DOI: 10.1016/j.bios.2018.08.016] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 08/05/2018] [Accepted: 08/08/2018] [Indexed: 10/28/2022]
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A Fast and Simple Method for Determination of Vitamin E in Infant Formula by Dispersive Liquid-Liquid Microextraction Combined with HPLC-UV. FOOD ANAL METHOD 2018. [DOI: 10.1007/s12161-018-1331-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Bitas D, Samanidou V. Molecularly Imprinted Polymers as Extracting Media for the Chromatographic Determination of Antibiotics in Milk. Molecules 2018; 23:E316. [PMID: 29393877 PMCID: PMC6017535 DOI: 10.3390/molecules23020316] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 01/26/2018] [Accepted: 02/01/2018] [Indexed: 11/16/2022] Open
Abstract
Milk-producing animals are typically kept stationary in overcrowded large-scale farms and in most cases under unsanitary conditions, which promotes the development of infections. In order to maintain sufficient health status among the herd or promote growth and increase production, farmers administer preventative antibiotic doses to the animals through their feed. However, many antibiotics used in cattle farms are intended for the treatment of bacterial infections in humans. This results in the development of antibiotic-resistant bacteria which pose a great risk for public health. Additionally, antibiotic residues are found in milk and dairy products, with potential toxic effects for the consumers. Hence the need of antibiotic residues monitoring in milk arises. Analytical methods were developed for the determination of antibiotics in milk, with key priority given to the analyte extraction and preconcentration step. Extraction can benefit from the production of molecularly imprinted polymers (MIPs) that can be applied as sorbents for the extraction of specific antibiotics. This review focuses on the principals of molecular imprinting technology and synthesis methods of MIPs, as well as the application of MIPs and MIPs composites for the chromatographic determination of various antibiotic categories in milk found in the recent literature.
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Affiliation(s)
- Dimitrios Bitas
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
| | - Victoria Samanidou
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
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Integrated Genomic and Proteomic Analyses of High-level Chloramphenicol Resistance in Campylobacter jejuni. Sci Rep 2017; 7:16973. [PMID: 29209085 PMCID: PMC5716995 DOI: 10.1038/s41598-017-17321-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 11/15/2017] [Indexed: 12/02/2022] Open
Abstract
Campylobacter jejuni is a major zoonotic pathogen, and its resistance to antibiotics is of great concern for public health. However, few studies have investigated the global changes of the entire organism with respect to antibiotic resistance. Here, we provide mechanistic insights into high-level resistance to chloramphenicol in C. jejuni, using integrated genomic and proteomic analyses. We identified 27 single nucleotide polymorphisms (SNPs) as well as an efflux pump cmeB mutation that conferred modest resistance. We determined two radical S-adenosylmethionine (SAM) enzymes, one each from an SNP gene and a differentially expressed protein. Validation of major metabolic pathways demonstrated alterations in oxidative phosphorylation and ABC transporters, suggesting energy accumulation and increase in methionine import. Collectively, our data revealed a novel rRNA methylation mechanism by a radical SAM superfamily enzyme, indicating that two resistance mechanisms existed in Campylobacter. This work provided a systems biology perspective on understanding the antibiotic resistance mechanisms in bacteria.
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Fu N, Liu X, Li L, Tang B, Row KH. Ternary choline chloride/caffeic acid/ethylene glycol deep eutectic solvent as both a monomer and template in a molecularly imprinted polymer. J Sep Sci 2017; 40:2286-2291. [DOI: 10.1002/jssc.201700146] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 03/15/2017] [Accepted: 03/18/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Najing Fu
- College of Pharmaceutical Science; Hebei University; Baoding China
| | - Xiao Liu
- College of Pharmaceutical Science; Hebei University; Baoding China
| | - Liteng Li
- College of Pharmaceutical Science; Hebei University; Baoding China
| | - Baokun Tang
- College of Pharmaceutical Science; Hebei University; Baoding China
| | - Kyung Ho Row
- Department of Chemistry and Chemical Engineering; Inha University; Incheon Korea
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12
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Kinoshita T, Nguyen DQ, Le DQ, Ishiki K, Shiigi H, Nagaoka T. Shape Memory Characteristics of O157-Antigenic Cavities Generated on Nanocomposites Consisting of Copolymer-Encapsulated Gold Nanoparticles. Anal Chem 2017; 89:4680-4684. [DOI: 10.1021/acs.analchem.7b00308] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Takamasa Kinoshita
- Department of Applied Chemistry, Osaka Prefecture University, 1-2 Gakuen, Naka, Sakai, Osaka 599-8570, Japan
| | - Dung Q. Nguyen
- Department of Applied Chemistry, Osaka Prefecture University, 1-2 Gakuen, Naka, Sakai, Osaka 599-8570, Japan
| | - Dung Q. Le
- Department of Applied Chemistry, Osaka Prefecture University, 1-2 Gakuen, Naka, Sakai, Osaka 599-8570, Japan
| | - Kengo Ishiki
- Department of Applied Chemistry, Osaka Prefecture University, 1-2 Gakuen, Naka, Sakai, Osaka 599-8570, Japan
| | - Hiroshi Shiigi
- Department of Applied Chemistry, Osaka Prefecture University, 1-2 Gakuen, Naka, Sakai, Osaka 599-8570, Japan
| | - Tsutomu Nagaoka
- Department of Applied Chemistry, Osaka Prefecture University, 1-2 Gakuen, Naka, Sakai, Osaka 599-8570, Japan
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Multi-class method for the determination of nitroimidazoles, nitrofurans, and chloramphenicol in chicken muscle and egg by dispersive-solid phase extraction and ultra-high performance liquid chromatography-tandem mass spectrometry. Food Chem 2017; 217:182-190. [DOI: 10.1016/j.foodchem.2016.08.097] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Revised: 05/31/2016] [Accepted: 08/25/2016] [Indexed: 11/17/2022]
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Rejtharová M, Rejthar L, Bureš J, Vernerová E, Hera A. Persistence of chloramphenicol residues in chicken muscle tissue after a therapeutic dose administration. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2016; 34:547-551. [DOI: 10.1080/19440049.2016.1253113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Martina Rejtharová
- ÚSKVBL - Institute for State Control of Veterinary Biologicals and Medicines, Brno, Czech Republic
| | - Libor Rejthar
- ÚSKVBL - Institute for State Control of Veterinary Biologicals and Medicines, Brno, Czech Republic
| | - Jiří Bureš
- ÚSKVBL - Institute for State Control of Veterinary Biologicals and Medicines, Brno, Czech Republic
| | - Eva Vernerová
- ÚSKVBL - Institute for State Control of Veterinary Biologicals and Medicines, Brno, Czech Republic
| | - Alfred Hera
- ÚSKVBL - Institute for State Control of Veterinary Biologicals and Medicines, Brno, Czech Republic
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Wei S, Li J, Liu Y, Ma J. Development of magnetic molecularly imprinted polymers with double templates for the rapid and selective determination of amphenicol antibiotics in water, blood, and egg samples. J Chromatogr A 2016; 1473:19-27. [DOI: 10.1016/j.chroma.2016.10.067] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Revised: 10/20/2016] [Accepted: 10/26/2016] [Indexed: 01/19/2023]
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Liu HY, Lin SL, Fuh MR. Determination of chloramphenicol, thiamphenicol and florfenicol in milk and honey using modified QuEChERS extraction coupled with polymeric monolith-based capillary liquid chromatography tandem mass spectrometry. Talanta 2016; 150:233-9. [DOI: 10.1016/j.talanta.2015.12.045] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 12/16/2015] [Accepted: 12/17/2015] [Indexed: 01/27/2023]
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Chiesa LM, Nobile M, Panseri S, Biolatti B, Cannizzo FT, Pavlovic R, Arioli F. A Liquid Chromatography-Tandem Mass Spectrometry Method for the Detection of Antimicrobial Agents from Seven Classes in Calf Milk Replacers: Validation and Application. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:2635-40. [PMID: 26971558 DOI: 10.1021/acs.jafc.6b00155] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Calf milk replacers are low-cost feeds that contain available, digestible protein. During their reconstitution, however, the addition of drugs, such as antibiotics, could make them a very simple route for illicit treatment for therapeutic, preventive, or growth-promoting purposes. We developed an HPLC-MS/MS method, preceded by a unique extraction step, able to identify 17 antibiotics from seven classes (penicillins, tetracyclines, fluoroquinolones, sulfonamides, cephalosporins, amphenicols, and lincosamides) in this matrix. Prior to solid phase extraction (SPE), the sample underwent deproteinization and defatting. The method was fully validated according to Commission Decision 2002/657/EC. Decision limits (CCα) and detection capability (CCβ) were in the ranges of 0.13-1.26 and 0.15-1.47 ng/mL, respectively. Thirty-eight samples were finally analyzed, showing the occasional presence of marbofloxacin (six samples) and amoxicillin (one sample).
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Affiliation(s)
- Luca Maria Chiesa
- Department of Veterinary Science and Public Health, University of Milan , Via Celoria 10, 20133 Milan, Italy
| | - Maria Nobile
- Department of Veterinary Science and Public Health, University of Milan , Via Celoria 10, 20133 Milan, Italy
| | - Sara Panseri
- Department of Veterinary Science and Public Health, University of Milan , Via Celoria 10, 20133 Milan, Italy
| | - Bartolomeo Biolatti
- Department of Veterinary Science, University of Turin , Largo Paolo Braccini 2, 10095 Grugliasco, Italy
| | | | - Radmila Pavlovic
- Department of Veterinary Science and Public Health, University of Milan , Via Celoria 10, 20133 Milan, Italy
| | - Francesco Arioli
- Department of Health, Animal Science and Food Safety, University of Milan , Via Celoria 10, 20133 Milan, Italy
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Samanidou V, Kehagia M, Kabir A, Furton KG. Matrix molecularly imprinted mesoporous sol-gel sorbent for efficient solid-phase extraction of chloramphenicol from milk. Anal Chim Acta 2016; 914:62-74. [PMID: 26965328 DOI: 10.1016/j.aca.2016.02.003] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 01/31/2016] [Accepted: 02/03/2016] [Indexed: 12/18/2022]
Abstract
Highly selective and efficient chloramphenicol imprinted sol-gel silica based inorganic polymeric sorbent (sol-gel MIP) was synthesized via matrix imprinting approach for the extraction of chloramphenicol in milk. Chloramphenicol was used as the template molecule, 3-aminopropyltriethoxysilane (3-APTES) and triethoxyphenylsilane (TEPS) as the functional precursors, tetramethyl orthosilicate (TMOS) as the cross-linker, isopropanol as the solvent/porogen, and HCl as the sol-gel catalyst. Non-imprinted sol-gel polymer (sol-gel NIP) was synthesized under identical conditions in absence of template molecules for comparison purpose. Both synthesized materials were characterized by Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FT-IR) and nitrogen adsorption porosimetry, which unambiguously confirmed their significant structural and morphological differences. The synthesized MIP and NIP materials were evaluated as sorbents for molecularly imprinted solid phase extraction (MISPE) of chloramphenicol in milk. The effect of critical extraction parameters (flow rate, elution solvent, sample and eluent volume, selectivity coefficient, retention capacity) was studied in terms of retention and desorption of chloramphenicol. Competition and cross reactivity tests have proved that sol-gel MIP sorbent possesses significantly higher specific retention and enrichment capacity for chloramphenicol compared to its non-imprinted analogue. The maximum imprinting factor (IF) was found as 9.7, whereas the highest adsorption capacity of chloramphenicol by sol-gel MIP was 23 mg/g. The sol-gel MIP was found to be adequately selective towards chloramphenicol to provide the necessary minimum required performance limit (MRPL) of 0.3 μg/kg set forth by European Commission after analysis by LC-MS even without requiring time consuming solvent evaporation and sample reconstitution step, often considered as an integral part in solid phase extraction work-flow. Intra and inter-assay RSD values were less than 13% and accuracy expressed as relative recovery ranged from 85 to 106%.
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Affiliation(s)
- Victoria Samanidou
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, Greece.
| | - Maria Kehagia
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, Greece
| | - Abuzar Kabir
- International Forensic Research Institute, Department of Chemistry and Biochemistry, Florida International University, Miami, FL, USA.
| | - Kenneth G Furton
- International Forensic Research Institute, Department of Chemistry and Biochemistry, Florida International University, Miami, FL, USA
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Yilmaz E, Billing J, Nilsson C, Boyd B, Kecili R, Nivhede D, Axelsson S, Rees A. Utilizing the Cross-Reactivity of MIPs. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2015; 150:167-82. [PMID: 25761825 DOI: 10.1007/10_2015_312] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
The crossreactivity of molecularly imprinted polymers (MIPs) and its practical implications are discussed. Screening of MIP libraries is presented as a fasttrack route to discovery of resins selective towards new targets, exploiting the fact that MIPs imprinted with one type of template molecule also show recognition to related and sometimes also to apparently unrelated molecules. Several examples from our own and others' studies are presented that illustrate this crossreactivity and the pattern of recognition is discussed for selected examples.
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Affiliation(s)
- Ecevit Yilmaz
- MIP Technologies AB (a Wholly Owned Subsidiary of Biotage AB), Box 737, 220 07, Lund, Sweden,
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Sniegocki T, Gbylik-Sikorska M, Posyniak A. Transfer of chloramphenicol from milk to commercial dairy products – Experimental proof. Food Control 2015. [DOI: 10.1016/j.foodcont.2015.04.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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A norepinephrine coated magnetic molecularly imprinted polymer for simultaneous multiple chiral recognition. J Chromatogr A 2015. [DOI: 10.1016/j.chroma.2015.07.052] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Tan Y, Wei T. Detection of 17β-estradiol in water samples by a novel double-layer molecularly imprinted film-based biosensor. Talanta 2015; 141:279-87. [PMID: 25966415 DOI: 10.1016/j.talanta.2015.04.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 04/02/2015] [Accepted: 04/05/2015] [Indexed: 10/23/2022]
Abstract
This study reports a novel double-layer molecularly imprinted film (MIF)-based biosensor for rapid, sensitive and highly selective detection of small molecule 17β-estradiol (E2) that is frequently detected in environmental water samples. In this system, the modification of gold surface of SPR chip was performed by 1-dodecanethiol. Then double-layer MIF was generated on the 1-dodecanethiol modified gold surface. The non-modified and imprinted surfaces were characterized by atomic force microscopy (AFM), scanning electron microscope (SEM) and contact angle measurements. Analysis of surface plasmon resonance (SPR) spectroscopy showed that the imprinted sensing film displayed good selectivity for E2 compared to other analog molecules and NIF. A good linear relationship was obtained between the SPR angle and E2 concentrations over a range of 2.50×10(-13)-2.50×10(-)(9)mol/L (R(2)=0.993) with the lowest measurable concentration of 2.50×10(-13)mol/L. The sensor can be regenerated with the mixture of acetic acid and PBS buffer (v/v=1:9) as a desorption agent over tens of times without significant deterioration of the sensor performance. Potential interference of real environmental sample matrix was assessed by spiked samples in several waste seawater effluents. This portable sensor system can be successfully applied for on-site real-time inexpensive and easy-to-use monitoring of E2 or other small molecule pollutants in environmental samples such as effluents or water bodies.
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Affiliation(s)
- Yuan Tan
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Tianxin Wei
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Institute of Technology, Beijing 100081, People's Republic of China.
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Rapid preparation of molecularly imprinted polymers by microwave-assisted emulsion polymerization for the extraction of florfenicol in milk. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 983-984:32-8. [PMID: 25614968 DOI: 10.1016/j.jchromb.2015.01.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 11/01/2014] [Accepted: 01/01/2015] [Indexed: 11/23/2022]
Abstract
In this study, we proposed a rapid and simple method for the preparation of molecularly imprinted polymers (MIPs) by emulsion polymerization. The polymerization process was accelerated by microwave heating, and the reaction time was greatly shortened. The obtained MIPs were spherical in shape and exhibited a uniform morphology. The MIPs with selectivity and high affinity to florfenicol were successfully applied as solid-phase extraction materials to extract and clean up the florfenicol in milk, followed by liquid chromatography-tandem mass spectrometry (LC-MS) analysis. The parameters affecting the performance of extraction and LC-MS analysis were evaluated. The detection limit of the method was 4.1ngmL(-1). The relative standard deviations of intra- and inter-day were in the range of 3.5-4.7% and 3.9-7.5%, respectively.
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Zhao Y, Bi C, He X, Chen L, Zhang Y. Preparation of molecularly imprinted polymers based on magnetic carbon nanotubes for determination of sulfamethoxazole in food samples. RSC Adv 2015. [DOI: 10.1039/c5ra13183a] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
An efficient approach was developed to synthesize the imprinted magnetic carbon nanotubes nanocomposite and apply for sulfamethoxazole enrichment from milk and honey samples.
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Affiliation(s)
- Yingran Zhao
- Research Center for Analytical Sciences
- College of Chemistry
- Tianjin Key Laboratory of Biosensing and Molecular Recognition
- State Key Laboratory of Medicinal Chemical Biology
- Nankai University
| | - Changfen Bi
- Research Center for Analytical Sciences
- College of Chemistry
- Tianjin Key Laboratory of Biosensing and Molecular Recognition
- State Key Laboratory of Medicinal Chemical Biology
- Nankai University
| | - Xiwen He
- Research Center for Analytical Sciences
- College of Chemistry
- Tianjin Key Laboratory of Biosensing and Molecular Recognition
- State Key Laboratory of Medicinal Chemical Biology
- Nankai University
| | - Langxing Chen
- Research Center for Analytical Sciences
- College of Chemistry
- Tianjin Key Laboratory of Biosensing and Molecular Recognition
- State Key Laboratory of Medicinal Chemical Biology
- Nankai University
| | - Yukui Zhang
- Research Center for Analytical Sciences
- College of Chemistry
- Tianjin Key Laboratory of Biosensing and Molecular Recognition
- State Key Laboratory of Medicinal Chemical Biology
- Nankai University
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Whitcombe MJ, Kirsch N, Nicholls IA. Molecular imprinting science and technology: a survey of the literature for the years 2004-2011. J Mol Recognit 2014; 27:297-401. [PMID: 24700625 DOI: 10.1002/jmr.2347] [Citation(s) in RCA: 275] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Revised: 10/28/2013] [Accepted: 12/01/2013] [Indexed: 12/11/2022]
Abstract
Herein, we present a survey of the literature covering the development of molecular imprinting science and technology over the years 2004-2011. In total, 3779 references to the original papers, reviews, edited volumes and monographs from this period are included, along with recently identified uncited materials from prior to 2004, which were omitted in the first instalment of this series covering the years 1930-2003. In the presentation of the assembled references, a section presenting reviews and monographs covering the area is followed by sections describing fundamental aspects of molecular imprinting including the development of novel polymer formats. Thereafter, literature describing efforts to apply these polymeric materials to a range of application areas is presented. Current trends and areas of rapid development are discussed.
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Li XQ, Yang Z, Zhang QH, Li HM. Evaluation of matrix effect in isotope dilution mass spectrometry based on quantitative analysis of chloramphenicol residues in milk powder. Anal Chim Acta 2014; 807:75-83. [DOI: 10.1016/j.aca.2013.11.017] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Revised: 11/05/2013] [Accepted: 11/08/2013] [Indexed: 11/16/2022]
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28
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Chen L, Li B. Magnetic molecularly imprinted polymer extraction of chloramphenicol from honey. Food Chem 2013; 141:23-8. [DOI: 10.1016/j.foodchem.2013.02.085] [Citation(s) in RCA: 111] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2012] [Revised: 02/20/2013] [Accepted: 02/23/2013] [Indexed: 11/25/2022]
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29
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Jandera P. Advances in the development of organic polymer monolithic columns and their applications in food analysis—A review. J Chromatogr A 2013; 1313:37-53. [DOI: 10.1016/j.chroma.2013.08.010] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 07/29/2013] [Accepted: 08/03/2013] [Indexed: 01/04/2023]
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Ma G, Chen L. Determination of Chlorpyrifos in Rice Based on Magnetic Molecularly Imprinted Polymers Coupled with High-Performance Liquid Chromatography. FOOD ANAL METHOD 2013. [DOI: 10.1007/s12161-013-9636-2] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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31
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Zang D, Yan M, Ge S, Ge L, Yu J. A disposable simultaneous electrochemical sensor array based on a molecularly imprinted film at a NH2-graphene modified screen-printed electrode for determination of psychotropic drugs. Analyst 2013; 138:2704-11. [DOI: 10.1039/c3an00109a] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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32
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Application of molecularly imprinted polymers in food analysis: clean-up and chromatographic improvements. OPEN CHEM 2012. [DOI: 10.2478/s11532-012-0016-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
AbstractSeveral natural and synthetic substances have been monitored in analytical laboratories worldwide to ensure food safety. Multiple residue detection (i.e., detection of multiple analytes in a single sample or matrix) is a main weakness of existing analytical methods, when fast and reliable results are required. Multianalyte approaches may save time and money in the food industry, and more importantly, they allow the quick release of food products into the marketplace. In addition, multianalyte approaches notably decrease the time required between sampling and analysis to meet legal requirements. However, to achieve analytical success, it is necessary to develop thorough clean-up procedures to extract analytes from the matrix. In addition, good chromatographic separation methods are also necessary to distinguish closely related analytes. Molecular imprinting technology (MIT) is an emerging, powerful tool for sample extraction and chromatography. First used for solid-phase extraction, molecularly imprinted polymers (MIPs) are also effective chromatographic phases for the separation of isomers and structurally related molecules. In recent years, a number of analytical methods utilising MIT have been applied for the analysis of residues in food, and existing methodologies have been improved. This review article describes the latest applications of MIT in the development of methodologies to monitor the presence of residues of veterinary products in foodstuff.
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Zeng H, Wang Y, Liu X, Kong J, Nie C. Preparation of molecular imprinted polymers using bi-functional monomer and bi-crosslinker for solid-phase extraction of rutin. Talanta 2012; 93:172-81. [DOI: 10.1016/j.talanta.2012.02.008] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2011] [Revised: 01/30/2012] [Accepted: 02/05/2012] [Indexed: 11/16/2022]
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Zeng H, Wang Y, Nie C, Kong J, Liu X. Preparation of magnetic molecularly imprinted polymers for separating rutin from Chinese medicinal plants. Analyst 2012; 137:2503-12. [PMID: 22489285 DOI: 10.1039/c2an35259a] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The preparation of magnetic molecularly imprinted polymers (MMIPs) which can be used for the separation and purification of rutin from Chinese medicinal plants has been proposed. By applying the improved co-precipitation method, magnetic Fe(3)O(4) particles were easily prepared, followed by the modification of TEOS and functionalization with -CH=CH(2). Using functionalized Fe(3)O(4) particles as the magnetic cores, rutin as the template, and acrylamide as the functional monomer, MMIPs were synthesized by surface-imprinted polymerization under the protection of nitrogen gas and successive mechanical stirring at 60 °C for 24 h. Magnetic non-molecularly imprinted polymers (MNIPs) were also prepared with the same synthesis procedure as with MMIPs only without the presence of rutin. Magnetic particles were characterized by FT-IR, XRD, and TG analysis. And the selectivity of MMIPs was also investigated in detail. In addition, the performance of the MMIPs for the adsorption of rutin in the analysis of Chinese medicinal plants was assessed. The mean recoveries were 84.33% (RSD: 3.22%, n = 3) for Saururus chinensis (Lour.) Bail and 85.20% (RSD: 3.58%, n = 3) for Flos Sophorae, respectively, which showed that the prepared MMIPs with many advantages possess the value of practical application.
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Affiliation(s)
- Huan Zeng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P.R. China
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Chen T, Shao M, Xu H, Zhuo S, Liu S, Lee ST. Molecularly imprinted polymer-coated silicon nanowires for protein specific recognition and fast separation. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm14329a] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Shi X, Song S, Sun A, Liu J, Li D, Chen J. Characterisation and application of molecularly imprinted polymers for group-selective recognition of antibiotics in food samples. Analyst 2012; 137:3381-9. [DOI: 10.1039/c2an35213c] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Mohamed R, Guy PA. The pivotal role of mass spectrometry in determining the presence of chemical contaminants in food raw materials. MASS SPECTROMETRY REVIEWS 2011; 30:1073-1095. [PMID: 21425183 DOI: 10.1002/mas.20314] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
During recent years, a rising interest from consumers and various governmental organizations towards the quality of food has continuously been observed. Human intervention across the different stages of the food supply chain can lead to the presence of several types of chemical contaminants in food-based products. On a normal daily consumption basis, some of these chemicals are not harmful; however, for those that present a risk to consumers, legislation rules were established to specify tolerance levels or in some cases the total forbiddance of these specific contaminants. Hence, the use of appropriate analytical tools is recommended to properly identify chemical contaminants. In that context, mass spectrometry (MS)-based techniques coupled or not to chromatography offer a vast panel of features such as sensitivity, selectivity, quantification at trace levels, and/or structural elucidation. Because of the complexity of food-based matrices, sample preparation is a crucial step before final detection. In the present manuscript, we review the contribution and the potentialities of MS-based techniques to ensure the absence of chemical contaminants in food-based products.
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Affiliation(s)
- Rayane Mohamed
- Nestlé Research Center, Nestec Ltd, P.O. Box 44, Vers-Chez-Les-Blanc 1000, Lausanne 26, Switzerland
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38
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Application of derivatized magnetic materials to the separation and the preconcentration of pollutants in water samples. Trends Analyt Chem 2011. [DOI: 10.1016/j.trac.2011.02.013] [Citation(s) in RCA: 209] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Wang T, Tong J, Sun M, Chen L. Fast and selective extraction of chloramphenicol from soil by matrix solid-phase dispersion using molecularly imprinted polymer as dispersant. J Sep Sci 2011; 34:1886-92. [DOI: 10.1002/jssc.201100046] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2011] [Revised: 05/02/2011] [Accepted: 05/03/2011] [Indexed: 11/08/2022]
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Trufelli H, Palma P, Famiglini G, Cappiello A. An overview of matrix effects in liquid chromatography-mass spectrometry. MASS SPECTROMETRY REVIEWS 2011; 30:491-509. [PMID: 21500246 DOI: 10.1002/mas.20298] [Citation(s) in RCA: 513] [Impact Index Per Article: 39.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2009] [Revised: 01/28/2010] [Accepted: 01/28/2010] [Indexed: 05/19/2023]
Abstract
Matrix-dependent signal suppression or enhancement represents a major drawback in quantitative analysis with liquid chromatography coupled to atmospheric pressure ionization mass spectrometry (LC-API-MS). Because matrix effects (ME) might exert a detrimental impact on important method parameters (limit of detection, limit of quantification, linearity, accuracy, and precision), they have to be tested and evaluated during validation procedure. This review gives a detailed description on when these phenomena might be expected, and how they can be evaluated. The major sources of ME are discussed and illustrated with examples from bioanalytical, pharmaceutical, environmental, and food analysis. Because there is no universal solution for ME, the main strategies to overcome these phenomena are described in detail. Special emphasis is devoted to the sample-preparation procedures as well as to the recent improvements on chromatographic and mass spectrometric conditions. An overview of the main calibration techniques to compensate for ME is also presented. All these solutions can be used alone or in combination to retrieve the performance of the LC-MS for a particular matrix-analyte combination.
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Affiliation(s)
- Helga Trufelli
- Dipartimento di Scienze Geologiche, Tecnologie Chimiche e Ambientali, Università degli Studi di Urbino Carlo Bo, Piazza Rinascimento, 6-61029 Urbino, Italy
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41
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Luo X, Deng F, Luo S, Tu X, Yang L. Grafting of molecularly imprinted polymers from the surface of Fe3O4 nanoparticles containing double bond via suspension polymerization in aqueous environment: A selective sorbent for theophylline. J Appl Polym Sci 2011. [DOI: 10.1002/app.33710] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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42
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Kowalski D, Poboży E, Trojanowicz M. Flow-injection preconcentration of chloramphenicol using molecularly imprinted polymer for HPLC determination in environmental samples. JOURNAL OF AUTOMATED METHODS & MANAGEMENT IN CHEMISTRY 2011; 2011:143416. [PMID: 21584273 PMCID: PMC3092492 DOI: 10.1155/2011/143416] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2010] [Revised: 12/27/2010] [Accepted: 01/27/2011] [Indexed: 05/12/2023]
Abstract
The residue of antibiotic chloramphenicol (CAP) is important issue for food quality control and also for the environmental monitoring. It is banned for use in food-producing animals and has very limited use in human medicine, because of its severe impact on human health. Determination of trace level of CAP in environmental samples requires a very sensitive analytical method and efficient preconcentration procedure. CAP can be efficiently preconcentrated in flow-injection system using flow-through reactor packed with molecularly imprinted polymer (MIP), but determination of CAP in eluate from MIP requires the application of chromatographic separation, which was made in reversed-phase HPLC system with UV detection. In optimized conditions the limit of detection for 100 mL sample in HPLC with offline preconcentration on MIP was evaluated as 0.66 mg/L. In hyphenated FIA-HPLC system with zone sampling the LOD for developed method was evaluated as 15 ng/L, which indicates the possibility of using it for analysis of environmental samples.
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Affiliation(s)
- Damian Kowalski
- Department of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Ewa Poboży
- Department of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Marek Trojanowicz
- Department of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
- *Marek Trojanowicz:
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43
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Shi X, Song S, Sun A, Li D, Wu A, Zhang D. Determination of Chloramphenicol Residues in Foods by ELISA and LC-MS/MS Coupled with Molecularly Imprinted Solid Phase Extraction. ANAL LETT 2010. [DOI: 10.1080/00032711003763616] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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44
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Li M, Zhang L, Meng Z, Wang Z, Wu H. Molecularly-imprinted microspheres for selective extraction and determination of melamine in milk and feed using gas chromatography-mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2010; 878:2333-8. [PMID: 20674520 DOI: 10.1016/j.jchromb.2010.07.003] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2010] [Revised: 07/04/2010] [Accepted: 07/05/2010] [Indexed: 11/25/2022]
Abstract
Molecularly-imprinted polymers in the form of microspheres were synthesized using the dispersion polymerization protocol; cyromazine was used as dummy template, while methacrylic acid, ethylene glycol dimethacrylate and acetonitrile (MeCN) were used as functional monomer, cross-linker, and porogen, respectively. When compared with the non-imprinted polymer, the molecularly-imprinted polymers (MIPs) showed outstanding affinity toward melamine in MeCN with a maximum binding concentration (B(max)) of 53.20 nmol mg(-1) MIPs, imprinting effect of 4.6, and a dissociation constant (K(d)) of 90.45 microM. After optimization of the molecularly-imprinted solid-phase extraction conditions, a new method was developed to determine the melamine in milk and feed with gas chromatography-mass spectrometry. The performance of this method has been evaluated in the tainted milk and feed in terms of recovery, precision, linearity, the limit of detection (LOD) and limit of quantitation (LOQ). Recovery ranged in samples from 93.1 to 101.3% with intra-day and inter-day relative standard deviation values below 5.34%. The LOD and LOQ of melamine in milk and feed were 0.01 microg mL(-1) (microg g(-1)) and 0.05 microg mL(-1) (microg g(-1)), respectively.
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Affiliation(s)
- Mu Li
- State Key Laboratory of Animal Nutrition, China Agricultural University, 2 Yuanmingyuan West Road, Beijing 100193, PR China
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45
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Molecularly imprinted polymers for sample preparation: A review. Anal Chim Acta 2010; 668:87-99. [DOI: 10.1016/j.aca.2010.04.019] [Citation(s) in RCA: 389] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2010] [Revised: 04/08/2010] [Accepted: 04/08/2010] [Indexed: 11/18/2022]
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46
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Ouyang R, Lei J, Ju H. Artificial receptor-functionalized nanoshell: facile preparation, fast separation and specific protein recognition. NANOTECHNOLOGY 2010; 21:185502. [PMID: 20388981 DOI: 10.1088/0957-4484/21/18/185502] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
This work combined molecular imprinting technology with superparamagnetic nanospheres as the core to prepare artificial receptor-functionalized magnetic nanoparticles for separation of homologous proteins. Using dopamine as a functional monomer, novel surface protein-imprinted superparamagnetic polydopamine (PDA) core-shell nanoparticles were successfully prepared in physiological conditions, which could maintain the natural structure of a protein template and achieved the development of molecularly imprinted polymers (MIPs) from one dimension to zero dimension for efficient recognition towards large biomolecules. The resultant nanoparticles could be used for convenient magnetic separation of homologous proteins with high specificity. The nanoparticles possessed good monodispersibility, uniform surface morphology and high saturation magnetization value. The bound amounts of template proteins measured by both indirect and direct methods were in good agreement. The maximum number of imprinted cavities on the surface of the bovine hemoglobin (Hb)-imprinted nanoshell was 2.21 x 10(18) g( - 1), which well matched their maximum binding capacity toward bovine Hb. Both the simple method for preparation of MIPs and the magnetic nanospheres showed good application potential in fast separation, effective concentration and selective biosensing of large protein molecules.
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Affiliation(s)
- Ruizhuo Ouyang
- Key Laboratory of Analytical Chemistry for Life Science (Education Ministry of China), Department of Chemistry, Nanjing University, Nanjing 210093, People's Republic of China
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Jing Z, Xuanfeng Y, Pingping L. PREPARATION OF MOLECULAR IMPRINTED MONOLITHIC EXTRACTION COLUMN AND ITS APPLICATION TO STRYCHNINE ANALYSIS IN WAN TONG JIN GU TROCHE BY HPLC. J LIQ CHROMATOGR R T 2010. [DOI: 10.1080/10826071003684133] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Zhang Jing
- a College of Chemistry and Materials Science , Shaanxi Normal University , Xi'an, P. R. China
- b Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province , Shaanxi Normal University , Xi'an, P. R. China
| | - Yue Xuanfeng
- a College of Chemistry and Materials Science , Shaanxi Normal University , Xi'an, P. R. China
- b Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province , Shaanxi Normal University , Xi'an, P. R. China
| | - Liang Pingping
- a College of Chemistry and Materials Science , Shaanxi Normal University , Xi'an, P. R. China
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Spietelun A, Pilarczyk M, Kloskowski A, Namieśnik J. Current trends in solid-phase microextraction (SPME) fibre coatings. Chem Soc Rev 2010; 39:4524-37. [DOI: 10.1039/c003335a] [Citation(s) in RCA: 234] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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Kinsella B, O’Mahony J, Malone E, Moloney M, Cantwell H, Furey A, Danaher M. Current trends in sample preparation for growth promoter and veterinary drug residue analysis. J Chromatogr A 2009; 1216:7977-8015. [DOI: 10.1016/j.chroma.2009.09.005] [Citation(s) in RCA: 116] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2009] [Revised: 08/24/2009] [Accepted: 09/03/2009] [Indexed: 12/16/2022]
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Rejtharová M, Rejthar L. Determination of chloramphenicol in urine, feed water, milk and honey samples using molecular imprinted polymer clean-up. J Chromatogr A 2009; 1216:8246-53. [PMID: 19647262 DOI: 10.1016/j.chroma.2009.07.037] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2009] [Revised: 07/10/2009] [Accepted: 07/17/2009] [Indexed: 10/20/2022]
Abstract
A method for determination of low concentrations of chloramphenicol in urine, feed water, milk and honey was developed. A comparison was carried out between a routinely used analytical method based on solid phase extraction (SPE-C18) for cleaning the extract and the new procedure for the sample preparation using columns based on the molecular imprinted polymers (MIP) principle. The extracts obtained from the MIP clean-up procedure were clean enough for chromatografic analyses. Confirmatory analyses were conducted using GC/MS-NCI after derivatisation (silylation). The described method was fully validated according to CD 2002/657/EC. This method is considerably robust and allows very dirty samples to be processed. The described MIP procedure is very simple and low-time-consuming, and provides high throughput of the samples examined. This could be used for routine screening and confirmatory analyses as well.
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Affiliation(s)
- Martina Rejtharová
- Institute for State Control of Veterinary Biologicals and Medicaments, CZ 621 00 Brno, Czech Republic.
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