【摘要】：采用氣相色譜-串聯(lián)質(zhì)譜(GC-MS/MS)技術(shù)建立了同時(shí)檢測7種類型蔬菜中氟吡菌酰胺及其代謝物殘留的分析方法。樣品采用乙腈提取,無水硫酸鎂和氯化鈉鹽析后,經(jīng)分散固相萃取(PSA)凈化,GC-MS/MS檢測。結(jié)果表明:在0.01、0.1和1 mg/kg 3個(gè)添加水平下,氟吡菌酰胺及其代謝物2-(三氟甲基)苯甲酰胺(BZM)的平均回收率在80%~108%之間,相對標(biāo)準(zhǔn)偏差(RSD)在1.5%~8.4%之間。氟吡菌酰胺及其代謝物在7種蔬菜中的檢出限(LOD)(S/N=3)分別為2.17~3.13μg/kg和1.22~2.04μg/kg,兩者的定量限(LOQ)均為0.01 mg/kg。該方法操作簡便、穩(wěn)定和快速,可以滿足大部分蔬菜中氟吡菌酰胺及其代謝物的定性與定量分析要求。
[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.
【作者單位】： 浙江大學(xué)農(nóng)藥與環(huán)境毒理研究所;杭州市余杭區(qū)農(nóng)產(chǎn)品質(zhì)量安全檢驗(yàn)檢測站;
【分類號】：S481.8;O657.63
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本文編號：2362298