A dispersive magnetic solid phase microextraction based on ionic liquid-coated and cyclodextrin-functionalized magnetic core dendrimer nanocomposites for the determination of pyrethroids in juice samples
A dispersive magnetic solid phase microextraction based on ionic liquid-coated and cyclodextrin-functionalized magnetic core dendrimer nanocomposites for the determination of pyrethroids in juice samples
复制标题
基于离子液体涂层和环糊精功能化磁芯树枝状聚合物纳米复合材料的分散磁性固相微萃取用于果汁样品中拟除虫菊酯的测定
DOI：
10.1016/j.foodchem.2018.06.105
复制
发表时间：
2018-12-01
期刊：
影响因子：
8.8
通讯作者：
Lu, Runhua
中科院分区：
文献类型：
--
作者：
Liu, Fang;Yang, Xiaoling;Lu, Runhua
A novel dispersive magnetic solid phase microextraction method based on ionic liquid-coated and cyclodextrinfunctionalized magnetic core dendrimer nanocomposites has been developed for the determination of pyrethroids in juice samples. The different generation magnetic core dendrimer nanocomposites were successfully synthesized and the nanocomposites possess both the selective retention of guest dendrimer and cyclodextrin molecules and high adsorption capacities of ionic liquids. The extraction efficiencies of different generation magnetic core dendrimer nanocomposites were compared, and the type of nanocomposite with the highest recovery was obtained. Under the optimized experimental conditions, the method showed good linearity in the range of 3.5-500 mu g L-1. The LODs and LOQs were in the ranges of 0.36-1.3 mu g L-1 and 1.2-4.3 mu g L-1, respectively. The method also showed acceptable accuracies ranging from 98.2% to 99.4%. The proposed method was demonstrated to broaden the potential applications of dendrimer for the detection of pyrethroid residues in various juice samples.
