Determination of Phenoxy Acid Herbicides in Cereals Using High-Performance Liquid Chromatography-Tandem Mass Spectrometry

文献类型： 外文期刊

第一作者： Guo, Tao

作者： Guo, Tao;Wang, Haifeng;Zhang, Shiyong;Wang, Xiaoli;Hu, Yufen;Zhao, Rusong

作者机构：

关键词： Cereals; High-performance liquid chromatography-tandem mass spectrometry; Phenoxy acid herbicides; QuEChERS

期刊名称：JOURNAL OF FOOD PROTECTION （ 影响因子：2.077； 五年影响因子：2.224 ）

ISSN： 0362-028X

年卷期： 2019 年 82 卷 7 期

页码：

收录情况： SCI

摘要： An effective method for determination of multiple residues of phenoxy acid herbicides in cereals was developed. A QuEChERS (quick, easy, cheap, effective, rugged, and safe) technique coupled with high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) was optimized for the analysis of phenoxy acid herbicides in rice, corn, and wheat. The limits of detection in the experiment were 0.0500 mu g/kg for 4-(2,4-dichlorophenoxy) acetic acid, (4-chloro-2-methylphenoxy) acetic acid, (2,4,5-trichlorophenoxy) acetic acid, and 2-(2,4-dichlorophenoxy) propionic acid and 0.300 mu g/kg for 4-(2,4-dichlorophenoxy) butyric acid and 3,6-dichloro-2-methoxybenzoic acid. The relative standard deviation of intraday and interday precision for the six phenoxy acid herbicides was less than 6.61%, and accuracy was 96.3 to 107%. Extraction recovery for phenoxy acid herbicides was 73.8 to 115%, with relative standard deviations of less than 12.1% at three spiking levels (1.00, 4.00, and 20.0 mu g/kg). These results indicate that QuEChERS sample preparation with HPLC-MS/MS analysis is a rapid, reliable, highly sensitive, and specific tool for the determination of phenoxy acid herbicide residues in cereals.

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[1]Determination of Phenoxy Acid Herbicides in Cereals Using High-Performance Liquid Chromatography-Tandem Mass Spectrometry. Guo, Tao,Wang, Haifeng,Zhang, Shiyong,Wang, Xiaoli,Hu, Yufen,Zhao, Rusong. 2019

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