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Feng G, Sun J, Wang M, Wang M, Li Z, Wang S, Zheng L, Wang J, She Y, Abd El-Aty AM. Preparation of molecularly imprinted polymer with class-specific recognition for determination of 29 sulfonylurea herbicides in agro-products. J Chromatogr A 2021; 1647:462143. [PMID: 33957346 DOI: 10.1016/j.chroma.2021.462143] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 03/29/2021] [Accepted: 04/06/2021] [Indexed: 12/15/2022]
Abstract
Molecularly imprinting polymers with high selectivity toward 29 sulfonylurea herbicides were synthesized by precipitation polymerization, using metsulfuron-methyl and chlorsulfuron as the template molecule, 4-vinylpyridine as the function monomer, divinylbenzene as the crosslinking agent, and acetonitrile as porogen. The imprinted polymers were characterized and measured by scanning electron microscopy (SEM) and equilibrium adsorption experiments. The molecularly imprinted polymers displayed specific recognition for the tested 29 sulfonylurea herbicides, and the maximum apparent binding capacity was found to be 18.81 mg/g. The synthesized polymer was used as a solid-phase extraction (SPE) column coupled with liquid chromatography-tandem mass spectrometry (LC-MS/MS) for determination of the tested analytes in agro-products. Within the range of 2-100 μg/L, the tested analytes have achieved a good linear association with correlation coefficient (R2) > 0.999. The calculated limits of detection (LODs, S/N=3) as along with limits of quantification (LOQs, S/N=10) were in the ranges of 0.005-0.07 μg/L and 0.018-0.23 μg/L, respectively. Under different spiking levels, the recovery rates were ranged from 74.8% - 110.5%, and the relative standard deviation (RSDs) were < 5.3%. Finally, the feasibility of the proposed methodology was successfully applied for detection of sulfonylurea herbicides in crops, vegetables, and oils samples.
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Affiliation(s)
- Gege Feng
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Science/Key Laboratory of Agro-Products Quality and Safety of Chinese Ministry of Agriculture, Beijing 100081, P. R. China
| | - Jianchun Sun
- Tibetan Inspection and Testing Center for Agricultural Product Quality and Safety, Lhasa, 850000, P.R. China
| | - Miao Wang
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Science/Key Laboratory of Agro-Products Quality and Safety of Chinese Ministry of Agriculture, Beijing 100081, P. R. China
| | - Mengqiang Wang
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Science/Key Laboratory of Agro-Products Quality and Safety of Chinese Ministry of Agriculture, Beijing 100081, P. R. China
| | - Zhuang Li
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Science/Key Laboratory of Agro-Products Quality and Safety of Chinese Ministry of Agriculture, Beijing 100081, P. R. China
| | - Shanshan Wang
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Science/Key Laboratory of Agro-Products Quality and Safety of Chinese Ministry of Agriculture, Beijing 100081, P. R. China
| | - Lufei Zheng
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Science/Key Laboratory of Agro-Products Quality and Safety of Chinese Ministry of Agriculture, Beijing 100081, P. R. China.
| | - Jing Wang
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Science/Key Laboratory of Agro-Products Quality and Safety of Chinese Ministry of Agriculture, Beijing 100081, P. R. China
| | - Yongxin She
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Science/Key Laboratory of Agro-Products Quality and Safety of Chinese Ministry of Agriculture, Beijing 100081, P. R. China.
| | - A M Abd El-Aty
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, 250353, China; Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, 12211-Giza, Egypt; Department of Medical Pharmacology, Medical Faculty, Ataturk University, 25240-Erzurum, Turkey.
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Optimising factors affecting solid phase extraction performances of molecular imprinted polymer as recent sample preparation technique. Heliyon 2021; 7:e05934. [PMID: 33553728 PMCID: PMC7848654 DOI: 10.1016/j.heliyon.2021.e05934] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 10/30/2020] [Accepted: 01/06/2021] [Indexed: 01/20/2023] Open
Abstract
Molecular imprinted solid-phase extraction is the technique that uses molecular imprinted polymer as the sorbent in solid phase extraction. Molecular imprinted solid-phase extraction is effective and efficient for the extraction process and cleaning as compared with solid phase extraction (SPE) without molecular imprinted polymer. The complexity of variables in molecular imprinted solid-phase extraction arise as problems in the analysis, therefore it is necessary to optimize the extraction conditions of molecular imprinted solid-phase extraction. To achieve the sorption equilibrium and achieve the shortest time, certain parameters such as contact time, ion strength of sample, pH of sample, amount of sorbent, sample flow rate, addition of salt and buffer solution, washing solvent, elution solvent, and loading solvent need to be optimized. The selection of suitable properties and quantities of each factor greatly affect the formation of appropriate interactions between the sorbent and analytes. Percentage recovery is also influenced by formation of the appropriate bonds, sample flow rates, extraction time, salt addition, and sorbent mass. Therefore, in the future, molecular imprinted solid-phase extraction optimization has to consider and adjust various factors reviewed in this paper to form appropriate interactions between the absorbent and target molecules which have an impact on the optimal results.
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Asman S, Mohamad S, Sarih NM. Influence of polymer morphology on the adsorption behaviors of molecularly imprinted polymer-methacrylic acid functionalized β-cyclodextrin. J Appl Polym Sci 2015. [DOI: 10.1002/app.42720] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Saliza Asman
- Department of Chemistry, Faculty of Science; University of Malaya; Lembah Pantai 50603 Kuala Lumpur Malaysia
- Department of Science and Mathematics, Faculty of Science, Technology and Human Development; University of Tun Hussein Onn Malaysia; 86400 Parit Raja Johor Malaysia
| | - Sharifah Mohamad
- Department of Chemistry, Faculty of Science; University of Malaya; Lembah Pantai 50603 Kuala Lumpur Malaysia
| | - Norazilawati Muhamad Sarih
- Department of Chemistry, Faculty of Science; University of Malaya; Lembah Pantai 50603 Kuala Lumpur Malaysia
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Ju C, Dong F, Liu X, Wu X, Zhao H, Zheng Y, Xu J. Rapid residue analysis of oxathiapiprolin and its metabolites in typical Chinese soil, water, and sediments by a modified quick, easy, cheap, effective, rugged, and safe method with ultra high performance liquid chromatography and tandem mass spectrometry. J Sep Sci 2015; 38:909-16. [DOI: 10.1002/jssc.201401126] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Revised: 12/03/2014] [Accepted: 12/23/2014] [Indexed: 11/06/2022]
Affiliation(s)
- Chao Ju
- State Key Laboratory for Biology of Plant Diseases and Insect Pests; Institute of Plant Protection; Chinese Academy of Agricultural Sciences; Beijing China
| | - Fengshou Dong
- State Key Laboratory for Biology of Plant Diseases and Insect Pests; Institute of Plant Protection; Chinese Academy of Agricultural Sciences; Beijing China
| | - Xingang Liu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests; Institute of Plant Protection; Chinese Academy of Agricultural Sciences; Beijing China
| | - Xiaohu Wu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests; Institute of Plant Protection; Chinese Academy of Agricultural Sciences; Beijing China
| | - Huanhuan Zhao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests; Institute of Plant Protection; Chinese Academy of Agricultural Sciences; Beijing China
| | - Yongquan Zheng
- State Key Laboratory for Biology of Plant Diseases and Insect Pests; Institute of Plant Protection; Chinese Academy of Agricultural Sciences; Beijing China
| | - Jun Xu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests; Institute of Plant Protection; Chinese Academy of Agricultural Sciences; Beijing China
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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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Shen ZL, Zhu XL, Yang J, Cai JB, Su QD. Study on the Binding Characteristic of Methamidophos-Specific Molecularly Imprinted Polymer and the Interactions between Template and Monomers. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200800086] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Yang M, Zhang Y, Lin S, Yang X, Fan Z, Yang L, Dong X. Preparation of a bifunctional pyrazosulfuron-ethyl imprinted polymer with hydrophilic external layers by reversible addition–fragmentation chain transfer polymerization and its application in the sulfonylurea residue analysis. Talanta 2013; 114:143-51. [DOI: 10.1016/j.talanta.2013.03.078] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Revised: 03/24/2013] [Accepted: 03/28/2013] [Indexed: 11/28/2022]
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Wang S, Dong X, Wang B, Fan Z, Luan L, Li Y. Study of the molecularly imprinted polymers for selective binding of the mono-substituted sulfonylurea herbicides. J Chromatogr Sci 2012; 51:302-9. [PMID: 22944737 DOI: 10.1093/chromsci/bms141] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
A new molecularly imprinted polymer (MIP) was synthesized for the selective extraction of mono-substituted sulfonylurea herbicides, with monosulfuron as the template and acrylamide as the functional monomer. The recognition property and affinity of the MIP for monosulfuron and its analog, monosulfuron-ester, were evaluated by equilibrium adsorption and a chromatographic study. Computer modeling, including simulated annealing and semi-empirical quantum calculation, was employed to study the recognition mechanism. The computer modeling demonstrated that monosulfuron can form multiple hydrogen bonds with methacrylic acid and acrylamide, whereas monosulfuron-ester cannot form a stable complex with these two functional monomers, which aligns with the results of the rebinding experiment. The selectivity study further demonstrated that binding sites in the MIP interact with the hydrogen in the acylamino group of mono-substituted sulfonylurea. A comparison experiment also showed that monosulfuron-imprinted MIP offers better selectivity for monosulfuron-ester than the commercial C18 high-performance liquid chromatography stationary phase material.
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Affiliation(s)
- Shengli Wang
- Department of Chemistry, Handan College, Hebei Province, Handan City, 056005, China.
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Zhang Y, Ding J, Gong S. Preparation of molecularly imprinted polymers for vanillin via reversible addition-fragmentation chain transfer suspension polymerization. J Appl Polym Sci 2012. [DOI: 10.1002/app.38474] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Fu XW, Wu YJ, Qu JR, Yang H. Preparation and utilization of molecularly imprinted polymer for chlorsulfuron extraction from water, soil, and wheat plant. ENVIRONMENTAL MONITORING AND ASSESSMENT 2012; 184:4161-4170. [PMID: 21805075 DOI: 10.1007/s10661-011-2252-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2010] [Accepted: 07/15/2011] [Indexed: 05/31/2023]
Abstract
A molecularly imprinted polymer (MIP) was prepared using chlorsulfuron (CS), a herbicide as a template molecule, methacrylic acid as a functional monomer, ethylene glycol dimethacrylate (EDMA) as a cross-linker, methanol and toluene as a porogen, and 2,2-azobisisobutyronitrile as an initiator. The binding behaviors of the template chlorsulfuron and its analog on MIP were evaluated by equilibrium adsorption experiments, which showed that the MIP particles had specific affinity for the template CS. Solid-phase extraction (SPE) with the chlorsulfuron molecularly imprinted polymer as an adsorbent was investigated. The optimum loading, washing, and eluting conditions for chlorsulfuron molecularly imprinted polymer solid-phase extraction (CS-MISPE) were established. The optimized CS-MISPE procedure was developed to enrich and clean up the chlorsulfuron residue in water, soils, and wheat plants. Concentrations of chlorsulfuron in the samples were analyzed by HPLC-UVD. The average recoveries of CS spiked standard at 0.05~0.2 mg L(-1) in water were 90.2~93.3%, with the relative standard deviation (RSD) being 2.0~3.9% (n=3). The average recoveries of 1.0 mL CS spiked standard at 0.1~0.5 mg L(-1) in 10 g soil were 91.1~94.7%, with the RSD being 3.1~5.6% (n=3). The average recoveries of 1.0 mL CS spiked standard at 0.1~0.5 mg L(-1) in 5 g wheat plant were 82.3~94.3%, with the RSD being 2.9~6.8% (n=3). Overall, our study provides a sensitive and cost-effective method for accurate determination of CS residues in water, soils, and plants.
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Affiliation(s)
- Xu Wei Fu
- Jiangsu Key Laboratory of Pesticide Science, College of Science, Nanjing Agricultural University, Weigang No.1, Building of Chemistry, Nanjing, 210095, China
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Lu F, Yang J, Sun M, Fan L, Qiu H, Li X, Luo C. Flow injection chemiluminescence sensor using core-shell molecularly imprinted polymers as recognition element for determination of dapsone. Anal Bioanal Chem 2012; 404:79-88. [DOI: 10.1007/s00216-012-6088-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Revised: 03/22/2012] [Accepted: 04/30/2012] [Indexed: 11/30/2022]
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12
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Chen J, Wu E, Zhu H, Lee KJ, Chu VM, Cho CW, Kim YH, Park YK, Lee WJ, Kang JS. Quality Evaluation of Modified Bo-Yang-Hwan-O-Tang by Capillary Electrophoresis and High-performance Liquid Chromatography. B KOREAN CHEM SOC 2011. [DOI: 10.5012/bkcs.2011.32.8.2666] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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13
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She YX, Cao WQ, Shi XM, Lv XL, Liu JJ, Wang RY, Jin F, Wang J, Xiao H. Class-specific molecularly imprinted polymers for the selective extraction and determination of sulfonylurea herbicides in maize samples by high-performance liquid chromatography–tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2010; 878:2047-53. [DOI: 10.1016/j.jchromb.2010.05.038] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2010] [Revised: 05/08/2010] [Accepted: 05/23/2010] [Indexed: 11/26/2022]
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Peng Y, Xie Y, Luo J, Nie L, Chen Y, Chen L, Du S, Zhang Z. Molecularly imprinted polymer layer-coated silica nanoparticles toward dispersive solid-phase extraction of trace sulfonylurea herbicides from soil and crop samples. Anal Chim Acta 2010; 674:190-200. [DOI: 10.1016/j.aca.2010.06.022] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2010] [Revised: 06/10/2010] [Accepted: 06/20/2010] [Indexed: 11/25/2022]
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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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Zhang Y, Pan T, Fang G, Ma D, Wang S. Development of a solid-phase extraction-enzyme-linked immunosorbent assay for the determination of 17beta-19-nortestosterone levels in antifatigue functional foods. J Food Sci 2010; 74:T67-74. [PMID: 19799684 DOI: 10.1111/j.1750-3841.2009.01311.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
17beta-19-nortestosterone (17beta-NT) has been illegally used in antifatigue functional foods to promote muscle growth and improve endurance. A rapid and sensitive solid-phase extraction-enzyme-linked immunosorbent assay (SPE-ELISA) method was developed and successfully applied to analyze the levels of 17beta-NT in antifatigue functional foods. A polyclonal antibody against 17beta-NT was produced from rabbits immunized with the 17beta-NT-BSA conjugate, and a competitive direct enzyme-linked immunosorbent assay was developed for the rapid detection of 17beta-NT. The concentration causing 50% inhibition (IC(50)) and the limit of detection (LOD) were found to be 0.08 and 0.0055 ng/mL, respectively; this was better than methods previously reported that had a LOD of 2.4 ng/mL. C(18) cartridges were investigated for use in removing the effects of matrix in foods, and the sample purification protocol was optimized. Using the developed SPE-ELISA method, recoveries of functional food samples were obtained in the range of 71% to 91.5%. Moreover, 2 kinds of antifatigue functional foods were analyzed using the established ELISA and HPLC methods. The correlation coefficient of the results obtained using the 2 methods was greater than 0.98. Thus, the preliminary evaluation of the SPE-ELISA method proved that it is a specific, sensitive, and precise tool that can be used for the practical detection of 17beta-NT in various antifatigue functional food samples.
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Affiliation(s)
- Yan Zhang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin Univ. of Science and Technology, Tianjin 300457, China
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Haginaka J. Molecularly imprinted polymers as affinity-based separation media for sample preparation. J Sep Sci 2009; 32:1548-65. [DOI: 10.1002/jssc.200900085] [Citation(s) in RCA: 153] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Zhang S, Yang G, Zheng Z, Chen Y. On-Line Preconcentration and Analysis of Metribuzin Residues in Corn Fields by Use of a Molecularly Imprinted Polymer. Chromatographia 2009. [DOI: 10.1365/s10337-008-0862-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Pichon V, Chapuis-Hugon F. Role of molecularly imprinted polymers for selective determination of environmental pollutants—A review. Anal Chim Acta 2008; 622:48-61. [DOI: 10.1016/j.aca.2008.05.057] [Citation(s) in RCA: 292] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2008] [Revised: 05/22/2008] [Accepted: 05/23/2008] [Indexed: 10/22/2022]
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Preliminary evaluation of new polymer matrix for solid-phase extraction of nonylphenol from water samples. Anal Chim Acta 2008; 612:99-104. [DOI: 10.1016/j.aca.2008.02.010] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2007] [Revised: 12/18/2007] [Accepted: 02/03/2008] [Indexed: 11/30/2022]
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21
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Analysis of Emerging Contaminants of Municipal and Industrial Origin. THE HANDBOOK OF ENVIRONMENTAL CHEMISTRY 2008. [DOI: 10.1007/978-3-540-74795-6_2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Jiang X, Jiang N, Zhang H, Liu M. Small organic molecular imprinted materials: their preparation and application. Anal Bioanal Chem 2007; 389:355-68. [PMID: 17546446 DOI: 10.1007/s00216-007-1336-6] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2007] [Accepted: 04/27/2007] [Indexed: 11/25/2022]
Abstract
Molecular imprinting is a technique for preparing polymeric materials that are capable of recognizing and binding the desired molecular target with a high affinity and selectivity. The materials can be applied to a wide range of target molecules, even those for which no natural binder exists or whose antibodies are difficult to raise. The imprinting of small organic molecules (e.g., pharmaceuticals, pesticides, amino acids, steroids, and sugars) is now almost routine. In this review, we pay special attention to the synthesis and application of molecular imprinted polymer (MIPs) imprinted with small organic molecules, including herbicides, pesticides, and drugs. The advantages, applications, and recent developments in small organic molecular imprinted technology are highlighted.
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Affiliation(s)
- Xiaoman Jiang
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
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Pichon V. Selective sample treatment using molecularly imprinted polymers. J Chromatogr A 2007; 1152:41-53. [PMID: 17412351 DOI: 10.1016/j.chroma.2007.02.109] [Citation(s) in RCA: 204] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2006] [Revised: 02/14/2007] [Accepted: 02/21/2007] [Indexed: 11/19/2022]
Abstract
The molecularly imprinted polymers (MIPs) are synthetic polymers possessing specific cavities designed for a target molecule. By a mechanism of molecular recognition, the MIPs are used as selective sorbents for the solid-phase extraction of target analytes from complex matrices. MIPs are often called synthetic antibodies in comparison with immuno-based sorbents; they offer some advantages including easy, cheap and rapid preparation and high thermal and chemical stability. This review describes the use of MIPs in solid-phase extraction with emphasis on their synthesis, the various parameters affecting the selectivity of the extraction, their potential to selectively extract analytes from complex aqueous samples or organic extracts, their on-line coupling with LC and their potential in miniaturized devices.
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Affiliation(s)
- Valérie Pichon
- Laboratoire Environnement et Chimie Analytique (UMR CNRS 7121), Ecole Supérieure de Physique et de Chimie Industrielles, 10 rue Vauquelin, 75231 Paris Cedex 05, France.
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He C, Long Y, Pan J, Li K, Liu F. Application of molecularly imprinted polymers to solid-phase extraction of analytes from real samples. ACTA ACUST UNITED AC 2007; 70:133-50. [PMID: 17107715 DOI: 10.1016/j.jbbm.2006.07.005] [Citation(s) in RCA: 242] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2006] [Accepted: 07/31/2006] [Indexed: 11/22/2022]
Abstract
A review is presented of recent developments in the use of molecularly imprinted polymers (MIPs) as selective materials for solid-phase extraction. Compared with traditional sorbents, MIPs can not only concentrate but also selectively separate the target analytes from real samples, which is crucial for the quantitatively determination of analytes in complex samples. Consequently, as one of the most effective sorbents, MIPs have been successfully applied to the pretreatment of analytes in foods, drugs, and biological and environmental samples in the past five years.
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Affiliation(s)
- Chiyang He
- Beijing National Laboratory for Molecular Sciences, The Key Laboratory of Bioorganic Chemistry and Molecular Engineering, Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
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Pichon V, Haupt K. Affinity Separations on Molecularly Imprinted Polymers with Special Emphasis on Solid‐Phase Extraction. J LIQ CHROMATOGR R T 2007. [DOI: 10.1080/10826070600574739] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Valérie Pichon
- a Laboratoire Environnement et Chimie Analytique , Ecole Supérieure de Physique et de Chimie Industrielles , Paris, France
| | - Karsten Haupt
- b Université de Technologie de Compiègne, Génie Enzymatique et Cellulaire , Compiègne, France
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Yang J, Hu Y, Cai JB, Zhu XL, Su QD. A new molecularly imprinted polymer for selective extraction of cotinine from urine samples by solid-phase extraction. Anal Bioanal Chem 2005; 384:761-8. [PMID: 16385415 DOI: 10.1007/s00216-005-0221-4] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2005] [Revised: 11/01/2005] [Accepted: 11/02/2005] [Indexed: 11/30/2022]
Abstract
Cotinine, the main metabolite of nicotine in human body, is widely used as a biomarker for assessment of direct or passive exposure to tobacco smoke. A method for molecularly imprinted solid-phase extraction (MISPE) of cotinine from human urine has been investigated. The molecularly imprinted polymer (MIP) with good selectivity and affinity for cotinine was synthesized using cotinine as the template molecule, methacrylic acid as the functional monomer, and ethylene glycol dimethacrylate as the cross-linker. The imprinted polymer was evaluated for use as a SPE sorbent, in tests with aqueous standards, by comparing recovery data obtained using the imprinted form of the polymer and a non-imprinted form (NIP). Extraction from the aqueous solutions resulted in more than 80% recovery. A range of linearity for cotinine between 0.05 and 5 microg mL-1 was obtained by loading 1 mL blank urine samples spiked with cotinine at different concentrations in acetate buffer of pH 9.0, and by using double basic washing and acidic elution. The intra-day coefficient of variation (CV) was below 7% and inter-day CV was below 10%. This investigation has provided a reliable MISPE-HPLC method for determination of cotinine in human urine from both active smokers and passive smokers.
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Affiliation(s)
- Jun Yang
- Department of Chemistry, University of Science and Technology of China, 230026, Hefei, People's Republic of China
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