气相色谱-串联质谱检测蔬菜中氟吡菌酰胺及其代谢物残留
发布时间：2018-11-28 08:06
【摘要】：采用气相色谱-串联质谱(GC-MS/MS)技术建立了同时检测7种类型蔬菜中氟吡菌酰胺及其代谢物残留的分析方法。样品采用乙腈提取,无水硫酸镁和氯化钠盐析后,经分散固相萃取(PSA)净化,GC-MS/MS检测。结果表明:在0.01、0.1和1 mg/kg 3个添加水平下,氟吡菌酰胺及其代谢物2-(三氟甲基)苯甲酰胺(BZM)的平均回收率在80%~108%之间,相对标准偏差(RSD)在1.5%~8.4%之间。氟吡菌酰胺及其代谢物在7种蔬菜中的检出限(LOD)(S/N=3)分别为2.17~3.13μg/kg和1.22~2.04μg/kg,两者的定量限(LOQ)均为0.01 mg/kg。该方法操作简便、稳定和快速,可以满足大部分蔬菜中氟吡菌酰胺及其代谢物的定性与定量分析要求。
[Abstract]:A gas chromatography-tandem mass spectrometry (GC-MS/MS) method was developed for simultaneous determination of flumiramide and its metabolites in seven types of vegetables. The samples were extracted by acetonitrile, salted out by anhydrous magnesium sulfate and sodium chloride, purified by dispersive solid phase extraction (PSA) and detected by GC-MS/MS. The results showed that the average recovery of flumiramide and its metabolite 2- (trifluoromethyl) benzoamide (BZM) was between 80% and 108% at the levels of 0.01 and 1 mg/kg. The relative standard deviation (RSD) was between 1.5% and 8.4%. The detection limit of flumiramide and its metabolites in seven vegetables were 2.17 ~ 3.13 渭 g/kg and 1.22 ~ 2.04 渭 g 路kg ~ (-1), respectively. The quantification limit (LOQ) of flopimide and its metabolites were both 0. 01 mg/kg.. The method is simple, stable and rapid, and can meet the requirements of qualitative and quantitative analysis of flumiramide and its metabolites in most vegetables.
【作者单位】： 浙江大学农药与环境毒理研究所;杭州市余杭区农产品质量安全检验检测站;
【分类号】：S481.8;O657.63
，
本文编号：2362298
[Abstract]:A gas chromatography-tandem mass spectrometry (GC-MS/MS) method was developed for simultaneous determination of flumiramide and its metabolites in seven types of vegetables. The samples were extracted by acetonitrile, salted out by anhydrous magnesium sulfate and sodium chloride, purified by dispersive solid phase extraction (PSA) and detected by GC-MS/MS. The results showed that the average recovery of flumiramide and its metabolite 2- (trifluoromethyl) benzoamide (BZM) was between 80% and 108% at the levels of 0.01 and 1 mg/kg. The relative standard deviation (RSD) was between 1.5% and 8.4%. The detection limit of flumiramide and its metabolites in seven vegetables were 2.17 ~ 3.13 渭 g/kg and 1.22 ~ 2.04 渭 g 路kg ~ (-1), respectively. The quantification limit (LOQ) of flopimide and its metabolites were both 0. 01 mg/kg.. The method is simple, stable and rapid, and can meet the requirements of qualitative and quantitative analysis of flumiramide and its metabolites in most vegetables.
【作者单位】： 浙江大学农药与环境毒理研究所;杭州市余杭区农产品质量安全检验检测站;
【分类号】：S481.8;O657.63
，
本文编号：2362298
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