消疹止痒胶囊有效成分的定性鉴别和含量测定方法研究

Identification of active ingredients and determination of contents in Xiaozhen Zhiyang capsule

目的建立消疹止痒胶囊中药材的定性鉴别方法和指标成分的含量测定方法。方法采用薄层色谱法对方中的诃子、麻黄进行定性鉴别;采用高效液相色谱法(HPLC)测定川芎中阿魏酸的含量。结果该鉴别方法专属性强,薄层色谱斑点清晰,阴性对照无干扰;阿魏酸的HPLC色谱峰与其他色谱峰分离良好,进样量在0.053 8～0.322 8μg范围内呈良好线性关系(r=0.999 9),平均加样回收率为100.30%,RSD=0.96%(n=9)。结论本方法简便、准确、重现性好,可用于消疹止痒胶囊的质量控制。

Objective To identify 2 active ingredients and determine the contents of ferulic acid in Xiaozhen Zhiyang capsules.Methods Thin layer chromatography（TLC） was used for qualitative identifi-cation of chebula Fructus,and Ephedrae Herbap.The content of Ferulic acid from Rhizoma Chuanxiong was determined by HPLC.Results The identification method was of high specificity with clear thin layer chromatography spots.The negative control did not impose any disturbance.In HPLC,the chromatographic peak of ferulic acid was well isolated from other peaks.There was a good linear relationship between the peak area and the sample size in a range of 0.053 8 to 0.322 8 μg（r = 0.999 9）.The average recovery of ferulic acid was 100.30%,RSD = 0.96%（n = 9）.Conclusion The method is a simple and accurate assay of good reproducibility.lt can be used for the quality control of Xiaozhen Zhiyang capsules.