采用反相高效液相色谱法 ,以甲醇 +水 (pH3) =70 +30 (V/V)作为流动相 ,用 2 5 4nm紫外检测器定量测定三氯杀螨醇和哒螨酮的含量。本方法中三氯杀螨醇的标准偏差为 0 .0 48% ,哒螨酮的标准偏差为 0 0 43% ;三氯杀螨醇的变异系数为 0 399% ,哒螨酮的变异系数为 0 .5 2 4% ;回收率均在 98%以上 The contents of dicofol and pyridaben were quantified by reversed-phase high performance liquid chromatography with methanol + water (pH3) = 70 +30 (V / V) as the mobile phase using a 254 nm UV detector. The standard deviation of dicofol in this method was 0.048%, that of pyridabenone was 0% ~ 43%, that of dicofol was 399%, that of pyridaben was 0.52%, and the recovery was Rates are above 98%