Study on the stereoselective behaviors of fosthiazate stereoisomers in legume vegetables by supercritical fluid chromatography-tandem mass spectrometry (SFC-MS/MS)
文献类型： 外文期刊
作者： Di, Shanshan 1 ; Wang, Xiangyun 1 ; Qi, Peipei 1 ; Guo, Mingcheng 4 ; Wang, Zhiwei 1 ; Zhao, Huiyu 1 ; Xu, Hao 1 ; Wang, 1 ;
作者机构： 1.Zhejiang Acad Agr Sci, Inst Qual & Stand Agroprod, State Key Lab Managing Biot & Chem Threats Qual &, Hangzhou 310021, Peoples R China
2.Key Lab Detect Pesticide Residues & Control Zheji, Hangzhou 310021, Peoples R China
3.Agr Minist, Key Lab Pesticide Residue Detect, Hangzhou 310021, Peoples R China
4.Minist Agr & Rural Affairs, Inst Control Agrochem, Beijing 100125, Peoples R China
关键词： Fosthiazate stereoisomers; SFC-MS/MS; Stereoselective behaviors; Legume vegetables; Species specificity
期刊名称：FOOD CHEMISTRY （ 影响因子：7.514； 五年影响因子：7.516 ）
ISSN： 0308-8146
年卷期： 2021 年 338 卷
页码：
收录情况： SCI
摘要： A separation and analysis method of fosthiazate stereoisomers was established utilizing supercritical fluid chromatography-tandem mass spectrometry (SFC-MS/MS) with a CHIRALPAK AD-3 column. The determination of the four fosthiazate stereoisomers could be completed within 6 min. The environmental behaviors of fosthiazate stereoisomers were studied in legume vegetables. After applying fosthiazate granules to soil, the concentrations of fosthiazate stereoisomers in the legume vegetables increased with time, reached maximum values in 7-10 days, and then decreased gradually in all legumes except for in Glycine max. No obvious dissipation behaviors were observed in Glycine max. Interestingly, the stereoselective behaviors were species-specific. A-(-), B-(-) and B-(+/-)-fosthiazate were preferentially enriched in Phaseolus vulgaris Linn and Vigna unguiculata, while A-(+) and A-(+/-)-fosthiazate preferentially accumulated in Vicia faba Linn, Pisum sativum Linn and G. max. The opposite stereoselectivity of B-(+/-)-fosthiazate was observed in different growth stage of G. max. No stereoselective dissipation occurred in soil.
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