Determination of Fipronil and Its Metabolites in Vegetables by Liquid Chromatography-Tandem Mass Spectrometry and the Investigation of Fipronil Sulfone Sources
Experimental Techniques and Methods|更新时间:2025-02-12
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Determination of Fipronil and Its Metabolites in Vegetables by Liquid Chromatography-Tandem Mass Spectrometry and the Investigation of Fipronil Sulfone Sources
Journal of Instrumental AnalysisVol. 44, Issue 2, Pages: 342-348(2025)
HUANG Jiang-peng,SUN Wen-wen,CHEN Shao-min,CHEN Hui-bing,WU Hai-jun.Determination of Fipronil and Its Metabolites in Vegetables by Liquid Chromatography-Tandem Mass Spectrometry and the Investigation of Fipronil Sulfone Sources[J].Journal of Instrumental Analysis,2025,44(02):342-348.
HUANG Jiang-peng,SUN Wen-wen,CHEN Shao-min,CHEN Hui-bing,WU Hai-jun.Determination of Fipronil and Its Metabolites in Vegetables by Liquid Chromatography-Tandem Mass Spectrometry and the Investigation of Fipronil Sulfone Sources[J].Journal of Instrumental Analysis,2025,44(02):342-348. DOI: 10.12452/j.fxcsxb.241108517.
Determination of Fipronil and Its Metabolites in Vegetables by Liquid Chromatography-Tandem Mass Spectrometry and the Investigation of Fipronil Sulfone Sources
A method was established for the determination of fipronil and its metabolites fipronil desulfinyl,fipronil sulfone and fipronil sulfide in vegetables by liquid chromatography-tandem mass spectrometry. The sample was extracted with acetonitrile and diluted,then filtered through millipore filter and multiple reaction monitoring(MRM) mode was selected for the determination. The results showed that the linear range for four analytes was 1-100 μg/L,with the correlation coefficients(
r
2
) larger than 0.998. The limit of quantification was 0.005 mg/kg. The recoveries were ranged from 96.0% to 117%,and the relative standard deviations(RSDs) were between 1.7%-5.3%. This method proves to be simple,fast and accurate,and has relative better recoveries and repeatability. Fipronil sulfone was detected in the market sampling vegetable samples,while fipronil was not detected. In-depth investigation and source research on the detected fipronil sulfone was conducted by gas chromatography-mass spectrometry method,and the results showed that fipronil sulfone was found to be added in pesticides.
关键词
液相色谱-串联质谱法气相色谱-质谱法蔬菜农药残留氟虫腈及代谢物
Keywords
liquid chromatography-tandem mass spectrometrygas chromatography-mass spectrometryvegetablespesticide residuesfipronil and its metabolites
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