Determination of Imidacloprid and Its Three Metabolites in Honey and Bee Pollen by Liquid Chromatography- Tandem Mass Spectrometry

文献类型： 外文期刊

第一作者： Liang Xiu-Mei

作者： Liang Xiu-Mei;Wang Xiang-Yun;Qi Pei-Pei;Liu Zhen-Zhen;Liu Zhi-Wei;Zhou Li;Wang Xin-Quan;Wang Qiang;Liang Xiu-Mei;Wang Xiang-Yun;Xue Xiao-Feng

作者机构：

关键词： Liquid chromatography tandem mass spectrometry;Honey;Hollen;Imidacloprid;Imidacloprid olefin;Imidacloprid urea;6-Chloronicotinic acid;Enhanced matrix removal-Lipid

期刊名称：CHINESE JOURNAL OF ANALYTICAL CHEMISTRY （ 影响因子：1.134； 五年影响因子：0.909 ）

ISSN： 0253-3820

年卷期： 2017 年 45 卷 4 期

页码：

收录情况： SCI

摘要： A method was developed for the determination of imidacloprid and its metabolites imidacloprid olefin, imidacloprid urea and 6-chloronicotinic acid in honey and bee pollen by liquid chromatography tandem mass spectrometry (LC-MS/MS). On the basis of typical QuEChERS method, the pH and times of extraction solvent, sorbents were optimized to ensure the extraction efficiency and the purification of extraction. Finally, the method was developed as follows: matrix was extracted with 5% formic acid. acetonitrile twice, and the extraction was cleaned with enhanced matrix removal. lipid (EMR), detected with LC-MS/MS and quantified with external matrix standards. The results indicated that the average spiked recoveries of imidacloprid, imidacloprid olefin, imidacloprid urea and 6. chloronicotinic acid in honey and pollen samples were 86.0% - 111.5% with relative standard deviations (RSDs) of 1.7% -9.6%, the LODs were 0.20, 3.50, 0.40 and 14.00. mu/kg, and the LOQs were 0.60, 11.64, 1.20 and 45.00. mu/kg. The method was rapid and simple with high sensitivity and good reproducibility, and suitable for the determination of imidacloprid and its three metabolites residues in honey and bee pollen.

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