Analysis of metamifop·cyhalofop-butyl 25％EC by HPLC
A quantitative analysis method was introduced for the determination of metamifop·cyhalofop-butyl 25％EC by HPLC on CH1RALCE OD-H column with ultraviolet detector at 238 nm.The mobile phase was made up of n-hexane and ethanol(95∶5,V/V).The results showed that the linear correlation coefficients of metamifop and cyhalofop-butyl were 0.9991 and 0.999 3,the coefficients of variation were 1.03％and 0.58％,and the average recoveries were 99.82％and 99.54％,respectively.The precision and accuracy of the method were good.It could be used for the determination of metamifop and cyhalofop-butyl in compound products effectively.
万方数据
