Separation and determination of fluindapyr enantiomers in cucumber and tomato and by supercritical fluid chromatography tandem mass spectrometry

文献类型： 外文期刊

第一作者： Guo, Peilin

作者： Guo, Peilin;An, Xiaokang;Pan, Xinglu;Li, Runan;Xu, Jun;Wu, Xiaohu;Dong, Fengshou;Chen, Wuying;Zheng, Yongquan;Zheng, Yongquan

作者机构：

关键词： Fluindapyr; Enantioselectivity; Cucumber; Tomato; Supercritical Fluid Chromatography Tandem; Mass Spectrometry (SFC-MS/MS)

期刊名称：FOOD CHEMISTRY （ 影响因子：9.231； 五年影响因子：8.795 ）

ISSN： 0308-8146

年卷期： 2022 年 395 卷

页码：

收录情况： SCI

摘要： Fluindapyr is a pyrazolamide chiral fungicide of succinate dehydrogenase inhibitor (SDHIs) with two enantio-mers. Pesticide enantiomers often exhibit different biological activities, toxicity due to their different enantio-selectivity. Therefore, it is important to separate fluindapyr enantiomers and assess each enantiomer. In this study, fluindapyr enantiomers were baseline separated by supercritical fluid chromatography-mass spectrometry in 2 min. The limit of quantification (LOQ) of this method was 5 mu g/kg. The developed method was applied to monitor the fluindapyr enantiomers in cucumber and tomato, the data showed that R-(-)-fluindapyr was pref-erentially degraded in tomato leaves, S-(+)-fluindapyr was preferentially degraded in cucumber leaves, and fluindapyr enantiomers had no enantioselective degradation behavior in two fruits. It is proved again that en-antiomers have different enantioselective degradation behavior with the different plant species and even to different parts of the same plant. The enantioselectivity is likely to be caused by different biodegradation enzyme systems.

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[1]Separation and determination of fluindapyr enantiomers in cucumber and tomato and by supercritical fluid chromatography tandem mass spectrometry. Guo, Peilin,An, Xiaokang,Pan, Xinglu,Li, Runan,Xu, Jun,Wu, Xiaohu,Dong, Fengshou,Chen, Wuying,Zheng, Yongquan,Zheng, Yongquan. 2022

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