Fast and selective extraction of chloramphenicol from soil by matrix solid‐phase dispersion using molecularly imprinted polymer as dispersant

Wang, Henan; Jia, Tao; Sun, Mingli; Chen, Ligang

doi:10.1002/jssc.201100046

Cited by 23 publications

(10 citation statements)

References 52 publications

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“…This technique can save the pretreatment time and the consumption of organic solvent, which has been increasingly applied for food and biological samples. [420][421][422][423] However, the common sorbents of MSPD, such as C 18 , C 8 , silica and florisil, lack selectivity towards target analytes and easily subjected to interference by non-target substances with similar characteristics.…”

Section: View Article Onlinementioning

confidence: 99%

Molecular imprinting: perspectives and applications

et al. 2016

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a Molecular imprinting technology (MIT), often described as a method of making a molecular lock to match a molecular key, is a technique for the creation of molecularly imprinted polymers (MIPs) with tailor-made binding sites complementary to the template molecules in shape, size and functional groups. Owing to their unique features of structure predictability, recognition specificity and application universality, MIPs have found a wide range of applications in various fields. Herein, we propose to comprehensively review the recent advances in molecular imprinting including versatile perspectives and applications, concerning novel preparation technologies and strategies of MIT, and highlight the applications of MIPs. The fundamentals of MIPs involving essential elements, preparation procedures and characterization methods are briefly outlined.Smart MIT for MIPs is especially highlighted including ingenious MIT (surface imprinting, nanoimprinting, etc.), special strategies of MIT (dummy imprinting, segment imprinting, etc.) and stimuli-responsive MIT (single/dual/ multi-responsive technology). By virtue of smart MIT, new formatted MIPs gain popularity for versatile applications, including sample pretreatment/chromatographic separation (solid phase extraction, monolithic column chromatography, etc.) and chemical/biological sensing (electrochemical sensing, fluorescence sensing, etc.). Finally, we propose the remaining challenges and future perspectives to accelerate the development of MIT, and to utilize it for further developing versatile MIPs with a wide range of applications (650 references).

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Section: View Article Onlinementioning

confidence: 99%

Molecular imprinting: perspectives and applications

et al. 2016

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“…A análise foi feita por HPLC e os resultados demostraram que a associação de MSPD e LLME foi satisfatória na quantificação de Sudan em alimentos [126] . Esta técnica foi também empregada na análise de cloranfenicol em amostras de solo [127] e carne de peixe [121] . Os polímeros foram sintetizados utilizando MAA e 4-VP como MF e EGDMA como ALC.…”

Section: Extração Por Dispersão Em Fase Sólida Molecularmente Impressunclassified

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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“…Molecularly imprinted polymers (MIPs), artificial ones, possess tailor-made binding sites complementary to the shapes, sizes and functional groups of the templates. MIPs have numerous merits, including low cost, easy synthesis, high stability to harsh chemical and physical conditions, and excellent reusability [7] , which have led to their application in a variety of fields such as solid-phase extraction (SPE) [8] , [9] , [10] , matrix solid-phase dispersion (MSPD) [11] , [12] , [13] , membrane separation [14] , [15] , chromatographic analysis [16] , [17] , [18] , sensors [19] , [20] , catalysis [21] , [22] , and drug controlled release [23] , [24] , [25] . Among these applications, MIPs used as efficient alternative adsorbents of SPE for extraction of environmental contaminants from the complex samples appear to be highly promising.…”

Section: Introductionmentioning

confidence: 99%

Selective extraction of dimethoate from cucumber samples by use of molecularly imprinted microspheres

Gao

et al. 2015

Journal of Pharmaceutical Analysis

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Molecularly imprinted polymers for dimethoate recognition were synthesized by the precipitation polymerization technique using methyl methacrylate (MMA) as the functional monomer and ethylene glycol dimethacrylate (EGDMA) as the cross-linker. The morphology, adsorption and recognition properties were investigated by scanning electron microscopy (SEM), static adsorption test, and competitive adsorption test. To obtain the best selectivity and binding performance, the synthesis and adsorption conditions of MIPs were optimized through single factor experiments. Under the optimized conditions, the resultant polymers exhibited uniform size, satisfactory binding capacity and significant selectivity. Furthermore, the imprinted polymers were successfully applied as a specific solid-phase extractants combined with high performance liquid chromatography (HPLC) for determination of dimethoate residues in the cucumber samples. The average recoveries of three spiked samples ranged from 78.5% to 87.9% with the relative standard deviations (RSDs) less than 4.4% and the limit of detection (LOD) obtained for dimethoate as low as 2.3 μg/mL.

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Fast and selective extraction of chloramphenicol from soil by matrix solid‐phase dispersion using molecularly imprinted polymer as dispersant

Cited by 23 publications

References 52 publications

Molecular imprinting: perspectives and applications

Molecular imprinting: perspectives and applications

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

Selective extraction of dimethoate from cucumber samples by use of molecularly imprinted microspheres

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