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目的建立依帕司他含量测定的UV法。方法检测波长292 nm,溶剂:无水乙醇。结果依帕司他在2.67~53.74μg/ml范围内线性关系良好,r=1.0000。平均回收率为99.60%,RSD为0.2%(n=6)。结论本方法简便,准确,可以用于依帕司他清洁验证中残留物依帕司他的定量分析。
Objective To establish a UV method for the determination of eptazepan. Method detection wavelength of 292 nm, solvent: ethanol. Results The results showed that there was a good linear relationship between epalrestat and 2.67 ~ 53.74μg / ml, r = 1.0000. The average recovery was 99.60% with a RSD of 0.2% (n = 6). Conclusion This method is simple and accurate and can be used for the quantitative analysis of epalrestat in the purification of epalrestat.