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采用弱极性填充分析柱和程序升温的气相色谱方法对敌敌畏·氯氰菊酯复配乳油中两活性组分进行测定,氢火焰离子化检测器检测,双内标定量。通过对两有效成分的线性关系、精密度和回收率试验,获得了满意的结果。测定敌敌畏和氯氰菊酯的线性相关系数分别为1.0000和0.99995,标准偏差分别为0.37和0.019,相对标准偏差分别为1.96%和0.85%,平均回收率分别为99.23%和99.51%。
Gas chromatography with weak polarity packed analytical column and programmed temperature was used to determine the two active components in the mixture of dichlorvos and cypermethrin emulsifiable concentrate. The hydrogen flame ionization detector was used to detect the content of the two active components. Through the linear relationship between the two active ingredients, precision and recovery test, obtained satisfactory results. The linear correlation coefficients of dichlorvos and cypermethrin were 1.0000 and 0.99995, respectively. The standard deviations were 0.37 and 0.019, respectively. The relative standard deviations were 1.96% and 0.85%, respectively. The average recoveries were 99.23% and 99.51% respectively.