采用高效液相色谱外标法测定10%氰氟·精噁唑可湿性粉剂中各有效成分质量分数。结果表明:氰氟草酯和精噁唑禾草灵的相关系数分别为0.9998和0.9999,标准偏差分别为0.083和0.093,变异系数分别为1.59%和1.77%,平均回收率分别为99.8%和99.6%。 The mass fraction of active ingredients in 10% cyanofenoxazole WP was determined by high performance liquid chromatography with external standard method. The results showed that the correlation coefficient between Cyhalofop and fenoxaprop was 0.9998 and 0.9999 respectively, the standard deviations were 0.083 and 0.093, the coefficients of variation were 1.59% and 1.77% respectively, the average recoveries were 99.8% and 99.6% respectively %.