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Reference type: Journal
Authors: Zhang M, He J, Shen YZ, He WY, Li YY, Zhao DX, Zhang SS
Article Title: Application of pseudo-template molecularly imprinted polymers by atom transfer radical polymerization to the solid-phase extraction of pyrethroids.
Publication date: 2018
Journal: Talanta
Volume: 178
Page numbers: 1011-1016.
DOI: 10.1016/j.talanta.2017.08.100
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0039914017309281

Abstract: A polymer-based adsorption medium with molecular recognition ability for homologs of pyrethroids was prepared by atom transfer radical polymer iration using a fragment imprinting technique. Phenyl ether-biphenyl eutectic was utilized as a pseudo-template molecule, and the adsorption medium prepared was evaluated by solid-phase extraction and gas chromatography. Selectivity of the medium for pyrethroids was evaluated using it as solid phase extraction packing by Gas Chromatography. The results demonstrated that the absorption amount of bifenthrin, fenpropathrin, permethrin, cypermethrin, fenvalerate, Dursban and pentachloronitrobenzene for molecularly imprinted polymers were 2.32, 2.12, 2.18, 2.20, 2.30, 1.30 and 1.40 mg g-1, respectively, while the non-imprinted polymers were 1.20, 1.13, 1.25, 1.05, 1.20, 1.23 and 1.32 mg g-1, respectively. The rebinding test based on the molecularly imprinted solid phase extraction column technique showed the recoveries of honey sample spiked with seven insecticides within 88.5-106.2%, with relative standard deviations of 2.38-5.63%. Finally, the method was successfully applied to the analysis of pyrethroids in a honey sample
Template and target information: phenyl ether-biphenyl eutectic, pseudo-template, pyrethroids, bifenthrin, fenpropathrin, permethrin, cypermethrin, fenvalerate, dursban, pentachloronitrobenzene
Author keywords: Pyrethroid, Atom transfer radical polymerization, pseudo-template, Solid-phase extraction


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