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采用气相色谱法同时测定氯氰·马拉硫磷乳油中两种组分的含量,以癸二酸二丁酯为内标物,HP-5石英毛细管色谱柱分离,FID检测。试验结果表明:该方法在一定质量浓度范围内成良好的线性关系,相关系数r氯氰=0.9999、r马拉硫磷=0.9998,氯氰和马拉硫磷的标准偏差分别为0.018、0.122,变异系数分别为0.756%、0.665%,平均回收率分别为99.5%、99.7%。
Simultaneous determination of two components in Cyanide Malathion EC by gas chromatography was carried out on a HP-5 quartz capillary column with FAB as a detection reagent, using dibutyl sebacate as internal standard. The experimental results show that the method has a good linear relationship within a certain mass concentration range, the correlation coefficient r = 0.9999, r malathion = 0.9998, the standard deviation of cyanide and malathion are 0.018, 0.122, The coefficients of variation were 0.756% and 0.665%, respectively. The average recoveries were 99.5% and 99.7%, respectively.