Microwave pretreatment and gas chromatography-mass spectrometry determination of herbicide residues in onion

文献类型： 外文期刊

第一作者： Zhang, Hong

作者： Zhang, Hong;Chen, Zilei;Wang, Wenzheng;Li, Xiuqing;Li, Ruiju;Wu, Yuanjuan;Chen, Zilei;Yang, Guosheng

作者机构：

关键词： microwave;GC-MS;herbicide;onion

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 rapid multi-residue method was developed for the determination of 16 herbicides in onion. The analytical procedure was based on preventing formation of sulfur-containing compounds in onion by microwave inactivation of the enzyme alliinase. The onion samples which had been pretreated were extracted with acetonitrile and cleaned by solid-phase extraction. The herbicide residues in onion were detected by gas chromatography/mass spectrometry with selected ion monitoring. The recoveries of 16 herbicides ranged from 69.2% to 105.0% with the relative standard deviations (RSD) below 10.7%. The limit of quantitation (LOQ) ranged from 0.003 to 0.015 mg kg~(-1). The method was applied to the analysis of herbicide residues in onion samples.

分类号： TS201`TS264`TS201.2

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