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Affiliation(s)
- Douglas E. Raynie
- Department of Chemistry and Biochemistry, South Dakota State University, Brookings, South Dakota 57007
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52
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Tse Sum Bui B, Merlier F, Haupt K. Toward the Use of a Molecularly Imprinted Polymer in Doping Analysis: Selective Preconcentration and Analysis of Testosterone and Epitestosterone in Human Urine. Anal Chem 2010; 82:4420-7. [DOI: 10.1021/ac100128c] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bernadette Tse Sum Bui
- Compiègne University of Technology, UMR CNRS 6022, B.P. 20529, 60205 Compiégne cedex, France
| | - Franck Merlier
- Compiègne University of Technology, UMR CNRS 6022, B.P. 20529, 60205 Compiégne cedex, France
| | - Karsten Haupt
- Compiègne University of Technology, UMR CNRS 6022, B.P. 20529, 60205 Compiégne cedex, France
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53
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Synthesis and application of a T-2 toxin imprinted polymer. J Chromatogr A 2010; 1217:2879-86. [DOI: 10.1016/j.chroma.2010.02.068] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2009] [Revised: 02/19/2010] [Accepted: 02/24/2010] [Indexed: 12/23/2022]
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54
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Oliveira HM, Segundo MA, Lima JLFC, Miró M, Cerdà V. Exploiting automatic on-line renewable molecularly imprinted solid-phase extraction in lab-on-valve format as front end to liquid chromatography: application to the determination of riboflavin in foodstuffs. Anal Bioanal Chem 2010; 397:77-86. [PMID: 20191267 DOI: 10.1007/s00216-010-3522-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2009] [Revised: 01/30/2010] [Accepted: 02/01/2010] [Indexed: 10/19/2022]
Abstract
In the present work, it is proposed, for the first time, an on-line automatic renewable molecularly imprinted solid-phase extraction (MISPE) protocol for sample preparation prior to liquid chromatographic analysis. The automatic microscale procedure was based on the bead injection (BI) concept under the lab-on-valve (LOV) format, using a multisyringe burette as propulsion unit for handling solutions and suspensions. A high precision on handling the suspensions containing irregularly shaped molecularly imprinted polymer (MIP) particles was attained, enabling the use of commercial MIP as renewable sorbent. The features of the proposed BI-LOV manifold also allowed a strict control of the different steps within the extraction protocol, which are essential for promoting selective interactions in the cavities of the MIP. By using this on-line method, it was possible to extract and quantify riboflavin from different foodstuff samples in the range between 0.450 and 5.00 mg L(-1) after processing 1,000 microL of sample (infant milk, pig liver extract, and energy drink) without any prior treatment. For milk samples, LOD and LOQ values were 0.05 and 0.17 mg L(-1), respectively. The method was successfully applied to the analysis of two certified reference materials (NIST 1846 and BCR 487) with high precision (RSD < 5.5%). Considering the downscale and simplification of the sample preparation protocol and the simultaneous performance of extraction and chromatographic assays, a cost-effective and enhanced throughput (six determinations per hour) methodology for determination of riboflavin in foodstuff samples is deployed here.
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Affiliation(s)
- Hugo M Oliveira
- REQUIMTE, Serviço de Química-Física, Faculdade de Farmácia, Universidade do Porto, Rua Aníbal Cunha, 164, 4099-030, Porto, Portugal
| | - Marcela A Segundo
- REQUIMTE, Serviço de Química-Física, Faculdade de Farmácia, Universidade do Porto, Rua Aníbal Cunha, 164, 4099-030, Porto, Portugal.
| | - José L F C Lima
- REQUIMTE, Serviço de Química-Física, Faculdade de Farmácia, Universidade do Porto, Rua Aníbal Cunha, 164, 4099-030, Porto, Portugal
| | - Manuel Miró
- Department of Chemistry, Faculty of Sciences, University of the Balearic Islands, Carretera de Valldemossa km 7.5, 07122, Palma, Illes Balears, Spain
| | - Victor Cerdà
- Department of Chemistry, Faculty of Sciences, University of the Balearic Islands, Carretera de Valldemossa km 7.5, 07122, Palma, Illes Balears, Spain
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55
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Comment on ‘Isolation and detection of steroids from human urine by molecularly imprinted solid-phase extraction and liquid chromatography’ by Gadzala-Kopciuch et al., J. Chromatogr. B 877 (2009), 1177–1184. J Chromatogr B Analyt Technol Biomed Life Sci 2009; 877:4180-1. [DOI: 10.1016/j.jchromb.2009.09.048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2009] [Revised: 09/24/2009] [Accepted: 09/28/2009] [Indexed: 11/21/2022]
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56
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De Smet D, Dubruel P, Van Peteghem C, Schacht E, De Saeger S. Molecularly imprinted solid-phase extraction of fumonisin B analogues in bell pepper, rice and corn flakes. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2009; 26:874-84. [DOI: 10.1080/02652030902788920] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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57
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Lasáková M, Jandera P. Molecularly imprinted polymers and their application in solid phase extraction. J Sep Sci 2009; 32:799-812. [PMID: 19219838 DOI: 10.1002/jssc.200800506] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Solid phase extraction is routinely used in many different areas of analytical chemistry. Some of the main fields are environmental, biological, and food chemistry, where cleaning and pre-concentration of the sample are important steps in the analytical protocol. Molecularly imprinted polymers (MIPs) have attracted attention because they show promise as compound-selective or group-selective media. The application of these synthetic polymers as sorbents allows not only pre-concentration and cleaning of the sample but also selective extraction of the target analyte, which is important, particularly when the sample is complex and impurities can interfere with quantification. This review surveys the selectivity of MIPs in solid phase extraction of various kinds of analytes.
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Affiliation(s)
- Martina Lasáková
- Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Pardubice, Czech Republic
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58
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Bompart M, Haupt K. Molecularly Imprinted Polymers and Controlled/Living Radical Polymerization. Aust J Chem 2009. [DOI: 10.1071/ch09124] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Molecularly imprinted polymers (MIPs) are tailor-made biomimetic receptors that are obtained by polymerization in the presence of molecular templates. They contain binding sites for target molecules with affinities and specificities on a par with those of natural receptors such as antibodies, hormone receptors, or enzymes. A great majority of the literature in the field describes materials based on polymers obtained by free radical polymerization. In order to solve general problems associated with MIPs, in particular their heterogeneity in terms of inner morphology and distribution of binding site affinities, it has been suggested to use modern methods of controlled/living radical polymerization for their synthesis. This also facilitates their generation in the form of nanomaterials, nanocomposites, and thin films, a strong recent trend in the field. The present paper reviews recent advances in the molecular imprinting area, with special emphasis on the use of controlled polymerization methods, their benefits, and current limitations.
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Urraca JL, Carbajo MC, Torralvo MJ, González-Vázquez J, Orellana G, Moreno-Bondi MC. Effect of the template and functional monomer on the textural properties of molecularly imprinted polymers. Biosens Bioelectron 2008; 24:155-61. [DOI: 10.1016/j.bios.2008.04.004] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2008] [Accepted: 04/08/2008] [Indexed: 10/22/2022]
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60
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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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61
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Hugon-Chapuis F, Mullot J, Tuffal G, Hennion MC, Pichon V. Selective and automated sample pretreatment by molecularly imprinted polymer for the analysis of the basic drug alfuzosin from plasma. J Chromatogr A 2008; 1196-1197:73-80. [DOI: 10.1016/j.chroma.2008.04.038] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2008] [Revised: 04/15/2008] [Accepted: 04/17/2008] [Indexed: 11/28/2022]
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62
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Molecular recognition of endocrine disruptors by synthetic and natural 17β-estradiol receptors: a comparative study. Anal Bioanal Chem 2008; 390:2081-8. [DOI: 10.1007/s00216-008-1949-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2007] [Revised: 01/25/2008] [Accepted: 02/06/2008] [Indexed: 11/25/2022]
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63
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Cacho C, Schweitz L, Turiel E, Pérez-Conde C. Molecularly imprinted capillary electrochromatography for selective determination of thiabendazole in citrus samples. J Chromatogr A 2008; 1179:216-23. [DOI: 10.1016/j.chroma.2007.11.097] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2007] [Revised: 11/09/2007] [Accepted: 11/28/2007] [Indexed: 10/22/2022]
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64
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Tamayo FG, Turiel E, Martín-Esteban A. Molecularly imprinted polymers for solid-phase extraction and solid-phase microextraction: Recent developments and future trends. J Chromatogr A 2007; 1152:32-40. [PMID: 17010356 DOI: 10.1016/j.chroma.2006.08.095] [Citation(s) in RCA: 363] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2006] [Revised: 08/21/2006] [Accepted: 08/30/2006] [Indexed: 11/19/2022]
Abstract
Molecularly imprinted polymers (MIPs) are synthetic polymers having a predetermined selectivity for a given analyte, or group of structurally related compounds, that make them ideal materials to be used in separation processes. In this sense, during past years a huge amount of papers have been published dealing with the use of MIPs as sorbents in solid-phase extraction, namely molecularly imprinted solid-phase extraction (MISPE). Although the majority of these papers were restricted to describe the use of different templates for different applications, several attempts proposing new alternatives to minimize the inherent drawbacks of the preparation and use of MIPs (i.e. template bleeding, tedious synthesis procedure, etc.) have been reported. Thus, this paper does not pretend to be a collection of MISPE-related papers but to give an overview on the significant attempts carried out during recent years to improve the performance of MIPs in solid-phase extraction. In addition, the use of MIPs packed in high performance liquid chromatography (HPLC) columns for the direct injection of crude sample extracts and the preparation of imprinted fibres for solid-phase microextraction will be also discussed.
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Affiliation(s)
- F G Tamayo
- Departamento de Medio Ambiente, INIA, Carretera de A Coruña km 7.5, 28040 Madrid, Spain
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65
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Le Moullec S, Truong L, Montauban C, Begos A, Pichon V, Bellier B. Extraction of alkyl methylphosphonic acids from aqueous samples using a conventional polymeric solid-phase extraction sorbent and a molecularly imprinted polymer. J Chromatogr A 2007; 1139:171-7. [PMID: 17134711 DOI: 10.1016/j.chroma.2006.11.022] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2006] [Revised: 09/29/2006] [Accepted: 11/07/2006] [Indexed: 11/29/2022]
Abstract
The analysis of alkyl methylphosphonic acids (AMPAs) constitutes an important subject for verifying the compliance to the Chemical Weapons Convention (CWC). Indeed, alkyl methylphosphonic acids are the degradation products of V and G nerve agents such as VX, sarin or soman. Lowering the limits of detection of analytical methods for complex aqueous matrices implies the introduction of concentration and clean-up steps in the whole analytical process. Therefore a molecular imprinted polymer (MIP) has been previously developed for the selective extraction and the concentration of the alkyl methylphosphonic acids. Unfortunately, the selective retention process on this MIP has involved the development of hydrogen bonds and so does not allow the direct percolation of aqueous samples. A change of solvent is then necessary and can be performed using solid-phase extraction (SPE) with conventional non selective hydrophobic sorbents. Two polymeric sorbents, Oasis HLB and HR-P resins, were selected for their high specific surface area. The extraction recoveries obtained on both sorbents were compared and the Oasis HLB sorbent was further selected and used for the percolation of acidified aqueous samples. An optimised SPE procedure was then applied to concentrate an aqueous soil extract spiked with isobutyl methylphosphonic acid (iBMPA) and cyclopentyl methylphosphonic acid (cPMPA) that was further cleaned-up by passing through the MIP. The resulting LC-MS full scan chromatograms highlight the clean-up effect of the SPE-MIP association by the removal of the matrix substances and the preservation of 95% of the compounds of interest.
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Affiliation(s)
- Sophie Le Moullec
- Département Analyse Chimique, Centre d'Etudes du Bouchet, B.P. 3, 91710 Vert-le-Petit, France
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