淫羊藿药材HPLC指纹图谱的勾兑研究
Blending of crude Epimedium Brevicornum according to their HPLC fingerprints
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摘要: 目的: 在中药HPLC指纹图谱数据的基础上,对不同来源的中药淫羊藿原药材进行了勾兑研究,寻找提高药材指纹图谱相似度,稳定药材质量的新途径。 方法: 以道地药材为勾兑目标,药材的夹角余弦相似度为评价指标,使用系统优化的勾兑比例投料进行勾兑实验,采集勾兑药材的HPLC指纹图谱。 结果: 勾兑后,药材与道地药材的相似度评价结果明显提高,与理论计算的结果一致。 结论: 相似度差异较大的不同批次中药材通过基于中药指纹图谱的勾兑,相似度评价得到提高,为中药原药材的充分利用提供了新的参考方法。Abstract: Objective: To find a new way of improving the quality of TCM,blendings of crude Epimedium Brevicornum from various sources were studied according to their Fingerprints. Methods: Systematic optimization was adopted to determine the mixing ratio of different kinds of non-genuine crude drugs in order to maximize the similarity,which is based on the cosine value between the fingerprints of genuine and non-genuine crude drugs respectively.Fingerprints data were collected after the blending. Results: The similarity of drugs was improved evidently,and it was in accordance with the calculation result. Conclusion: Quality improvement of TCM can be made by blending.Optimized blending of crude drugs might be an efficient method in making full use of the relatively inadequate TCM resources.
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Key words:
- blending /
- TCM /
- Epimedium Brevicornum /
- fingerprinting
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