Molecularly imprinted solid-phase extraction method for the high-performance liquid chromatographic analysis of fungicide pyrimethanil in wine

Baggiani, Claudio; Baravalle, Patrizia Domenica; Giraudi, Gianfranco; Tozzi, Cinzia

doi:10.1016/j.chroma.2006.12.016

Cited by 88 publications

(43 citation statements)

References 21 publications

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“…The MIP was obtained by iniferter-mediated grafting on porous chloromethylated polystyrene beads, using MAA as the functional monomer and ethylene glycol dimethacylate (EDMA) as the cross-linker. Furthermore, the MIP was successfully applied to selective SPE of pyrimethanil in wine [38]. An MIP for sulfamethazine was synthesized on the surface of silica gels using a molecular imprinting sol -gel technique.…”

Section: Other Polymerization Methodsmentioning

confidence: 99%

“…On aminopropyl-silica gels, an MIP for 2,4-dinitrophenol was coated using o-phenylenediamine as both a functional monomer and a cross-linker [37]. Immobilized dithiocarbamate initiators (initiator-chain transfer agents, iniferters), where the mobile radicals formed upon decomposition are stable and propagating chains, were used for the preparation of an MIP for pyrimethanil [38]. The MIP was obtained by iniferter-mediated grafting on porous chloromethylated polystyrene beads, using MAA as the functional monomer and ethylene glycol dimethacylate (EDMA) as the cross-linker.…”

Section: Other Polymerization Methodsmentioning

confidence: 99%

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Molecularly imprinted polymers as affinity‐based separation media for sample preparation

Haginaka¹

2009

J of Separation Science

171

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This review article deals with molecularly imprinted polymers (MIPs) as affinity-based separation media for sample preparation. An over view of two types of MIPs (molecularly imprinted particle and monolith) used for the sample preparation and modes of molecularly imprinted SPE (online mode, offline mode, on-column extraction, SPME, and microextraction in packed syringe) is given, focusing on the advantages and disadvantages of these types and modes. Next, problems (template leakage and incompatibility with aqueous conditions) associated with molecularly imprinted SPE and how to overcome those problems are described. Finally, pharmaceutical, food, bioanalytical, and environmental application of molecularly imprinted SPE will be discussed.

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Section: Other Polymerization Methodsmentioning

confidence: 99%

Section: Other Polymerization Methodsmentioning

confidence: 99%

Molecularly imprinted polymers as affinity‐based separation media for sample preparation

Haginaka¹

2009

J of Separation Science

171

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“…Entretanto, espera-se que haja um aumento significativo dessa aplicação em virtude das já bem comentadas vantagens da utilização dos MIPs em amostras complexas. Contudo, cabe destacar alguns procedimentos de extração em fase sólida molecularmente impressa nesse tipo de matriz, incluindo: análise de praguicidas, fármacos, compostos fenólicos e toxinas em matrizes como leite, vinho, cereais, frutas, frutos do mar, entre outros [37][38][39][40][41][42] .…”

Section: Introductionunclassified

Emprego de polímeros de impressão molecular em preparo de amostras para análise de compostos orgânicos: aplicações e tendências

Santos¹,

Abrão²,

Freitas³

et al. 2012

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ResumoOs polímeros de impressão molecular são materiais sintéticos dotados de sítios específicos de reconhecimento. Esses materiais são obtidos por reações de polimerização que fixam, estrategicamente, monômeros funcionais ao redor de uma molécula modelo de acordo com os grupos ligantes e com a estereoquímica de ambas as moléculas. Os MIPs têm sido amplamente empregados em procedimentos de preparo de amostras, como extração e microextração em fase sólida, extração sortiva em barra de agitação, extração com adsorvente magnético, microextração com sorvente empacotado, entre outras. Este artigo de revisão tem como objetivo apresentar o que há de mais recente no emprego de MIP para extração de compostos orgânicos, evidenciando as vantagens de cada aplicação, bem como as mais promissoras tendências que sustentam a evolução e o aperfeiçoamento de cada técnica. Palavras-chavePolímeros de impressão molecular; MIP; preparo de amostras.Molecularly imprinted polymers in sample preparation for organic compounds analysis: applications and trends AbstractMolecularly imprinted polymers are synthetic materials with molecular recognition ability. These materials are obtained by polymerization reactions that fix the functional monomers around the template molecule according with the binding groups and the stereochemistry of both molecules. The MIPs have been extensively used in several applications with emphasis for sample preparation procedures as solid phase extraction, solid phase microextraction, extraction by magnetic sorbents, microextraction by packed sorbent among others. So, the objective of this review is to present the novelty in MIP use for organic compounds extraction and point out the advantages of each application, as well as what is most promising in the evolution and improvement of each technique.

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“…In the beginning of this section it is noteworthy that, since, in preparation of many non-covalent MIPs a template: functional monomer: cross-linker molar ratio of about 1: 4: 20 has resulted in very suitable performance characteristics; this ratio was used for synthesis of metoprolol molecularly imprinted polymer in the present work [17,19,26,[35][36][37][38][39][40][41][42]. The most commonly used functional monomer is methacrylic acid (MAA).…”

Section: Preparation and Characterization Of Mipmentioning

confidence: 99%

Molecularly imprinted polymer Based PVC-Membrane-Coated graphite electrode for the determination of metoprolol

Tehrani

Vardini

Azar

et al. 2010

JICS

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A PVC membrane based on metoprolol molecularly imprinted polymer (MIP) coated directly on graphite electrode for determination of metoprolol in real sample is described. This potentiometric sensor was designed by dispersing the MIP particles in dioctylphthalate plasticizer as solvent mediator and then embedded in polyvinyl chloride matrix. The electrode exhibits a near Nernstian of 55.4±1 mV decade -1 for metoprolol over a wide concentration range between 2.0×10 -7 -8.0×10 -3 M and a detection limit of 1.26×10 -7 M. It has a response time of about 14 seconds and can be used for at least 6 months without any divergence in potential. The proposed electrode can be used in the pH range of 3.5-10.5 and revealed good selectivities for metoprolol over a wide variety of ions. Finally, the designed sensor was successfully applied as an indicator electrode to determine concentration of metoprolol in tablets, human urine and plasma and the results were compared favorably with those obtained by HPLC method and showed satisfactory agreements with them.

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Molecularly imprinted solid-phase extraction method for the high-performance liquid chromatographic analysis of fungicide pyrimethanil in wine

Cited by 88 publications

References 21 publications

Molecularly imprinted polymers as affinity‐based separation media for sample preparation

Molecularly imprinted polymers as affinity‐based separation media for sample preparation

Emprego de polímeros de impressão molecular em preparo de amostras para análise de compostos orgânicos: aplicações e tendências

Molecularly imprinted polymer Based PVC-Membrane-Coated graphite electrode for the determination of metoprolol

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