建立了烟叶中三唑酮及其代谢物三唑醇-a、三唑醇-b残留量的测定方法,样品经乙腈超声提取,正己烷萃取去除油脂后用气相色谱质谱联用仪选择离子模式检测。3种农药回收率在93.02%—100.92%之间,相对标准偏差为1.18%—3.84%。该方法操作简单,重现性和准确度高,适用于烟叶中三唑酮、三唑醇-a、三唑醇-b残留分析。 A method for the determination of triadimenol-triazine and -b residues in tobacco leaves was established. The samples were extracted by acetonitrile and extracted with n-hexane to remove the fats and oils. The samples were separated by gas chromatography-mass spectrometry Detection. The recoveries of three pesticides ranged from 93.02% to 100.92% with relative standard deviations of 1.18% -3.84%. The method is simple, reproducible and accurate. It is suitable for the analysis of triadimefon, triadimenol-triazine, and trimethoprim-b residues in tobacco leaves.