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本文主要研究喹禾灵在花生植株及土壤环境中的残留与降解动态，采用气相色谱法电子捕获检定器（ＥＣＤ）测定。仪器的最小检出量为１×１０￣（－１１）克，样品的最低检出浓度为０．００１毫克／千克。喹禾灵本体在花生叶、花生仁、土壤中的平均回收率分别为：８２．１～８３．３％、８２．９～８６．１％、８３．６～９２．３％，变异系数依次为２．７～８．７％、３．２～５．３％、０．８～６．２％；喹禾灵酸在花生仁和土壤中的平均回收率分别为８５．２～８８．４％、８１．７～８８．４％，变异系数依次为３．９～５．８％、６．７～７．８％。
In this paper, we mainly study the residual and degradation dynamics of quizalofop-p-ethyl in peanut plants and soil environment by gas chromatography electron capture detector (ECD). The minimum detectable volume of the instrument is 1 × 10 ~ (-11) g and the minimum detectable concentration of the sample is 0.001 mg / kg. The average recoveries of quizalofop-p-ethyl in peanut leaf, peanut kernel and soil were 82.1-83.3%, 82.9-86.1% and 83.6-92.3%, respectively, and the coefficients of variation 2.7 ~ 8.7%, 3.2 ~ 5.3% and 0.8 ~ 6.2%, respectively. The average recoveries of quinoi acid in peanut kernel and soil were 85.2 ~ 88.4 %, 81.7 ~ 88.4%, the coefficient of variation was 3.9 ~ 5.8%, 6.7 ~ 7.8%.