Comparison of methods for quantitative analysis of the active ingredients of trifloxystrobin was determined by HPLC and gas chromatography.By a diode array detector wavelength at 250nm and FID detector,the active in-gredient of trifloxystrobin was analyzed quantitatively With a Agilent C18 column and a AE.SE-30 Capillary column,using methanol and water as the mobile phase and dicyclohexyl phthalat as the internal standard.The results showed that the linear correlation coefficients of HPLC and gas chromatography were 0.999 9 and 0.999 5,the standard devia-tions were 0.21 and 0.19,the coefficient of variation was 0.21%and 0.19%,and the average recovery was 99.74%and 99.67%respectively.By comparison,the both methods are good for quantitative analysis of trifloxystrobin.
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