Fast and Selective Pressurized Liquid Extraction with Simultaneous In-Cell Cleanup for the Analysis of Ethyl Carbamate in Fermented Solid Foods
文献类型： 外文期刊
作者： Liao, Qie Gen 1 ; Luo, Lin Guang 1 ;
作者机构： 1.Jiangxi Acad Agr Sci, Agr Prod Qual Safety & Stand Inst, Key Lab Qual & Safety Agr Prod, Nanchang 330200, Peoples R China
关键词： Gas chromatography–tandem mass spectrometry;Selective pressurized liquid extraction;Ethyl carbamate;Fermented solid foods
期刊名称：CHROMATOGRAPHIA （ 影响因子：2.044； 五年影响因子：1.725 ）
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收录情况： SCI
摘要： A novel analytical methodology that could be used to identify ethyl carbamate (EC) in fermented solid foods was developed and validated. The method was based on selective pressurized liquid extraction with a simultaneous in-cell cleanup combined with gas chromatography– tandem mass spectrometry. The final method was performed at 50 ℃ for 2 9 5 min using ethyl acetate. Florisil was placed inside the extraction cell downstream of the sample to remove interfering compounds. The proposed method showed a limit of detection of 0.3 lg kg~(-1) and a limit of quantitation of 1.0 lg kg~(-1). The recoveries ranged from 98 to 107 % with relative standard deviations of ＜7 %. The validated method was successfully applied for the determination of EC in French bread, sauerkraut and fermented bead curd samples.
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