采用高效液相色谱法,以乙腈+磷酸水溶液为流动相,使用SB—C_(18)为填料的不锈钢柱和紫外检测器,检测波长230 nm,对酰嘧磺隆和甲基碘磺隆钠盐进行定量分析。结果表明,酰嘧磺隆和甲基碘磺隆钠盐标准偏差为0.044、0.022,变异系数为0.87%、1.70%,平均回收率为99.2%、98.7%,线性相关系数为0.999 1、0.998 5。 High performance liquid chromatography (HPLC) with acetonitrile + phosphoric acid as mobile phase and stainless steel column packed with SB-C_ (18) and UV detector were used. The detection wavelength was 230 nm. Salt quantitative analysis. The results showed that the standard deviation of amosulfuron methyl and methyl iodosulfuron sodium was 0.044,0.022, the coefficient of variation was 0.87% and 1.70%, the average recovery was 99.2% and 98.7%, and the linear correlation coefficient was 0.999 and 0.998 5 respectively .