Analysis of cyhalofop-butyl·metamifop 30％OD by HPLC
[Aims]This study aims to establish a method for the determination of active components in cyhalofop-butyl·metamifop 30％OD by HPLC.[Methods]The separation and quantitative analysis of metamifop and cyhalofop-butyl in the sample was conducted by ZORBAX Extend-C18 column and DAD detector at 240 nm with the mixture of acetonitrile and 0.1％acetic acid aqueous solution as mobile phase.[Results]The linear correlation coefficients for metamifop and cyhalofop-butyl were all greater than 0.999,the variation coefficients were 0.38％and 0.41％,the average recovery rates were 99.3％and 99.7％,respectively.[Conclusions]The method is simple and convenient,with good separation effect,precision and accuracy,which indicated that it can be used for quality control of cyhalofop-butyl·metamifop 30％OD.
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