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Synergetic dual recognition and separation of the fungicide carbendazim by using magnetic nanoparticles carrying a molecularly imprinted polymer and immobilized beta-cyclodextrin

文献类型： 外文期刊

作者： Li, Shuhuai 1 ; Wu, Xuejin 1 ; Zhang, Qun 1 ; Li, Pingping 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Anal & Test Ctr, Haikou 571101, Peoples R China

2.Hainan Prov Key Lab Qual & Safety Trop Fruits & V, Haikou 571101, Peoples R China

关键词： Benzimidazole carbamate;Scanning electron microscopy;Zeta potential;X-ray diffraction;FTIR;X-ray photoelectron spectroscopy;Solid-phase extraction;Gold nanoparticles

期刊名称：MICROCHIMICA ACTA （ 影响因子：5.833； 五年影响因子：5.357 ）

ISSN：

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收录情况： SCI

摘要： The authors describe a nanomaterial for solid-phase extraction of carbendazim. Magnetic molecularly imprinted polymer nanoparticles (mag-MIP-NPs) were obtained by immobilizing the MIP and a thiolated beta-cyclodextrin on the surface of magnetite (Fe3O4) nanoparticles coated with gold nanoparticles. Both the recognition sites of the MIP and the hydrophobic cavities in the beta-cyclodextrin contribute to the specific molecular recognition and extraction of carbendazim. The mag-MIP-NPs have an apparent adsorption capacity of 190 mga <...gaEuro3/4(1). Spiked vegetables were analyzed by using this material for extraction of carbendazim prior to its determination by ultra performance liquid chromatography (UHPLC). Recoveries range from 90.5 % to 109 %, and the detection limit is 3.0 pga <...mLaEuro3/4(1).

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