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[目的]建立30%噁嗪草酮悬浮剂高效液相色谱分析方法。[方法]采用内标法,C18、5μm为填料的不锈钢柱和DAD检测器,以乙腈-水(体积比65∶35)为流动相,在220 nm波长下对噁嗪草酮进行分离和定量。[结果]该分析方法的线性相关系数为0.999 9,标准偏差为0.09,变异系数为0.31%,平均回收率为100.1%。[结论]该方法简单可靠,精密度和准确度高,适用于30%噁嗪草酮悬浮剂中有效成分含量的测定。
[Objective] The research aimed to establish a HPLC method for the determination of 30% Ophrosperidone suspending agent. [Method] The internal standard method, C18, 5μm as the filler of stainless steel column and DAD detector, with acetonitrile - water (65:35 by volume) as the mobile phase, at the wavelength of 220 nm for the isolation and quantification . [Result] The linear correlation coefficient of this method was 0.999 9, the standard deviation was 0.09, the coefficient of variation was 0.31% and the average recovery was 100.1%. [Conclusion] The method was simple, reliable, accurate and accurate. It was suitable for the determination of active ingredients in 30% oxazofen SC.