Using beta-cyclodextrin/attapulgite-immobilized ionic liquid as sorbent in dispersive solid-phase microextraction to detect the benzoylurea insecticide contents of honey and tea beverages

文献类型： 外文期刊

第一作者： Yang, Miyi

作者： Yang, Miyi;Wu, Xiaoling;Xi, Xuefei;Zhang, Panjie;Yang, Xiaoling;Lu, Runhua;Zhou, Wenfeng;Zhang, Sanbing;Gao, Haixiang;Li, Jianyong

作者机构：

关键词： Attapulgite;Benzoylurea insecticides;Dispersive solid-phase microextraction;High-performance liquid chromatography;Ionic liquid;Plackett-Burman design

期刊名称：FOOD CHEMISTRY （ 影响因子：7.514； 五年影响因子：7.516 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： A green, simple, inexpensive dispersive solid-phase microextraction method coupled with high-performance liquid chromatography was developed for rapid screening and selective recognition of benzoylurea insecticides (BUs) in honey and tea beverages. A novel adsorbent, ionic liquid (IL)-modified beta-cyclodextrin/attapulgite (beta-CD/ATP), was prepared by immobilizing IL on the surface of beta-CD/ATP. A series of demanding extraction conditions were investigated through the experimental design. Under optimum conditions, the limits of detection for the analytes varied from 0.12 to 0.21 mu g L (1). The enrichment factors ranged from 112 to 150 folds. Linearities in the range of 5-500 ng mL (1) were achieved for four BUs, while the correlation coefficients ranged from 0.9997 to 1.0000 and the recoveries from 84.5% to 104.7%. The precision of this method for the four BUs corresponded to intra-day and inter-day RSDs% lower than 3.85%. Finally, the proposed technique was applied for the preconcentration of the BUs from real samples with satisfactory results. (C) 2015 Elsevier Ltd. All rights reserved.

分类号： TS2`TS201.2

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