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Reference type: Journal
Authors: Li SH, Wu XJ, Zhang Q, Li PP
Article Title: Synergetic dual recognition and separation of the fungicide carbendazim by using magnetic nanoparticles carrying a molecularly imprinted polymer and immobilized β-cyclodextrin.
Publication date: 2016
Journal: Microchimica Acta
Volume: 183
Issue: (4)
Page numbers: 1433-1439.
DOI: 10.1007/s00604-016-1765-z

Abstract: 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 β-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 β-cyclodextrin contribute to the specific molecular recognition and extraction of carbendazim. The mag-MIP-NPs have an apparent adsorption capacity of 190 mg g-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 pg mL-1
Template and target information: carbendazim
Author keywords: Benzimidazole carbamate, scanning electron microscopy, zeta potential, X-ray diffraction, FTIR, X-ray photoelectron spectroscopy, Solid-phase extraction, gold nanoparticles

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