期刊
TALANTA
卷 178, 期 -, 页码 1011-1016出版社
ELSEVIER
DOI: 10.1016/j.talanta.2017.08.100
关键词
Pyrethroid; Atom transfer radical polymerization; Pseudo-template; Solid-phase extraction
资金
- National Natural Science Foundation of China [21575034, 51502079]
- Fundamental Research Funds for the Henan Provincial Colleges and Universities in Henan University of Technology [2017RCJH10]
- Science and Technology Project of Henan Province [152102210062]
- Project of Natural Science in Zhengzhou City Science and Technology Bureau [20140699]
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.
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