An analytical method for determination of nitenpyram·flonicamid 25％nanoemulsion was established by HPLC,using methanol and 0.1％formic acid solution(20∶80,V/V)as mobile phase at the flow rate of 0.2 mL/min.The contents of nitenpyram and flonicamid were determined on Shim-pack GIS C18 column and UV-vis detector with the wavelength of 265 nm.The results showed that the relative standard deviation,the average recovery,and linear correlation coefficient of nitenpyram were 1.41％,100.46％,and 0.999 9,respectively.The relative standard deviation,the average recovery,and linear correlation coefficient of flonicamid were 0.51％,100.62％,and 0.999 6,respectively.The method had the characteristics of quantitative accuracy,good repetitiveness,and simple operation.
维普
万方数据