分光光度法测定元胡止痛片中延胡索总生物碱的含量
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[摘要] 目的 采用分光光度法测定元胡止痛片中延胡索总生物碱的含量,确定最佳的提取及测定方法。方法 用溴甲酚绿与生物碱结合成有机络合物,以定量的有机溶剂提取,用分光光度法在波长413 nm处测定。结果 平均回收率为100.9%,RSD为0.53%。结论 本方法准确、可靠、重复性好,可作为元胡止痛片的质量控制标准。
[关键词] 元胡止痛片;延胡索总生物碱;分光光度法
[中图分类号] R284 [文献标识码] A [文章编号] 2095-0616(2012)03-141-02
Determine the content of total corydalis alkaloid by spectrophotometry in Yuanhuzhitong tablet
LIU Linlin1,2 LI Zhengguo2 LIU Lifang1
1.Department of Pharmaceutical Analysis,China Pharmaceutical University,Nanjing 211198,China;2.Jining Institute for Drug Control,Jining 272025,China
[Abstract] Objective Determine the content of total corydalis alkaloid by spectrophotometry in Yuanhuzhitong tablet, Identify the optimal extraction and determination. Methods Use bromocresol green combined with alkaloids into organic complex,extraction with a certain amount of organic solvent, measured at a wavelength of 413nm by spectrophotometry.Results Average recovery was 100 ......
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