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【目的】对福美双·福美锌80%可湿性粉剂测定方法进行研究。【方法】采用高效液相色谱法分析福美双·福美锌复配制剂,使用C18反相柱和紫外可变波长检测器,以甲醇-水为流动相,流动相用三乙胺调制pH为8.2~8.5,用外标法对有效成分进行分析和定量。【结果】高效液谱分析分析测定福美双与福美锌的标准偏差分别为0.10和0.19,变异系数分别为0.33%和0.38%,平均回收率分别为99.2%和99.4%。【结论】方法具有简便、快捷、精密度和准确度高的特点。
【Objective】 To study the determination method of thiram and malachite 80% wettable powder. 【Method】 High performance liquid chromatography (HPLC) was used to analyze the thiram-mesylate complex preparation. The mobile phase consisted of methanol-water with C18 reversed-phase column and ultraviolet variable wavelength detector. The mobile phase was adjusted to pH 8.2 with triethylamine ~ 8.5, with the external standard method for analysis and quantification of the active ingredient. 【Result】 The results showed that the standard deviations of thiram and fume zinc were 0.10 and 0.19, respectively, and the coefficients of variation were 0.33% and 0.38%, respectively. The average recoveries were 99.2% and 99.4%, respectively. 【Conclusion】 The method is simple, rapid, precise and accurate.