Synergetic recognition and separation of kelthane and pyridaben base on magnetic molecularly imprinted polymer nanospheres

文献类型: 外文期刊

第一作者: Li, Shuhuai

作者: Li, Shuhuai;Wu, Xuejin;Luo, Jinhui;Xu, Mingze

作者机构:

关键词: Insecticides;Kelthane;Molecularly imprinted polymers;Magnetite particles;Pyridaben

期刊名称:JOURNAL OF SEPARATION SCIENCE ( 影响因子:3.645; 五年影响因子:2.943 )

ISSN:

年卷期:

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收录情况: SCI

摘要: We present novel magnetic composite nanospheres for the preparation of a nanoiron oxide/carbon dots/beta-cyclodextrin/molecularly imprinted polymer for the selective solid-phase extraction kelthane and pyridaben from vegetables. The molecularly imprinted polymer was synthesized on the surface of nano-iron oxide/carbon dots via a chemical polymerization procedure, where kelthane-beta-cyclodextrin and pyridaben-beta-cyclodextrin inclusion complexes were used as template molecules, and their adsorption behavior was investigated in detail. Characterization analysis and binding experiments revealed that magnetic composite nanospheres had outstanding magnetic properties, a large adsorption capacity, and high competitive selectivity for kelthane and pyridaben. The magnetic composite nanospheres were employed as an adsorbent in solid- phase extraction for the determination of kelthane and pyridaben in vegetable samples. The recoveries of kelthane and pyridaben were 92.8-105.2 and 94.4-104.6%, respectively.

分类号: O6

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