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介绍了以甲醇-乙腈-氨水溶液(体积比75︰10︰15)为流动相,使用HypersilODS不锈钢柱,在245nm条件下使用紫外检测器,对甲维.毒死蜱25%水乳剂进行高效液相色谱分离和测定,外标法定量。测定方法中各有效成分回收率分别为:甲氨基阿维菌素苯甲酸盐在99.06～100.00%范围内;毒死蜱99.83～100.04%,标准偏差:甲氨基阿维菌素苯甲酸盐为0.042;毒死蜱为0.095 0,变异系数:甲氨基阿维菌素苯甲酸盐为0.038%;毒死蜱为0.004%,线性相关系数:甲氨基阿维菌素苯甲酸盐为0.999 31;毒死蜱为0.999 72。该方法快速、准确、可靠。
A mobile phase consisting of methanol-acetonitrile-ammonia solution (75:10:15 by volume) was introduced. HypersilODS stainless steel column was used to analyze the chlorivoxime 25% aqueous emulsion at 245nm with high performance liquid chromatography Isolation and determination, external standard method. The recoveries of the active ingredients in the determination method are as follows: the emamectin benzoate is in the range of 99.06 to 100.00%; the chlorpyrifos is 99.83 to 100.04%; the standard deviation is: emamectin benzoate is 0.042 ; Chlorpyrifos 0.095 0, coefficient of variation: 0.038% emamectin benzoate; chlorpyrifos 0.004%, linear correlation coefficient: emamectin benzoate 0.999 31; chlorpyrifos 0.999 72 . The method is fast, accurate and reliable.