乙草胺、喹禾灵的同柱气相色谱分析

Analysis of Acetochlor and Quizalofop-ethyl by Gas Chromatography

采用气相色谱法、氢焰离子化检测器，选择２．５％ＳＰ２４０１／ｃｈｒｏｍｏｓｏｒｂＷ－ＨＰ（８０～１００目）色谱柱，以乙二酸二正辛酯为内标，在相同的气相色谱条件下，完成乙草胺、喹禾灵的有效成分定量分析。乙草胺的标准偏差为０．４，变异系数１．３％，回收率９９．４３～１００．２１％；喹禾灵的标准偏差为０．２，变异系数４．０％，回收率９８．１７％～１００．３２％。

A mixture of acetochlor and quizalofop-ethyl was determined by gas chromatography with SP2401 as stationary phase,di-n-octyl adipate as internal standard in unchanged column temperature.The standard deviation,coefficient of variation and recovery were 0 4,1 3% and 99 43%～100 21% for acetochlor and 0 2,4 0% and 98 17%～100 32% for quizalofop-ethyl,respectively.