不同产地蟾皮药材的HPLC指纹图谱研究

目的:对10批不同来源的蟾皮药材进行比较分析,建立蟾皮药材的指纹图谱,为其质量控制和药材鉴别提供依据。方法:采用高效液相色谱法进行检测,通过计算机辅助相似性评价系统对HPLC指纹图谱进行处理和分析,结合相似度计算对药材进行比较。结果:①建立了蟾皮药材HPLC指纹图谱共有模式,确定了29个峰构成蟾皮药材的指纹特征,其中9个吸收峰与已知9种蟾毒配基类标准品相对应;②10个不同来源的蟾皮药材相对保留时间相似度较高,均在0.99以上,但其相对峰面积相似度较低。结论:①该方法准确可靠、重复性好,其指纹图谱可用于蟾皮的鉴别和质量控制;②不同产地蟾皮药材在主要成分的构成上基本稳定,但各成分的含量却不尽相同。

Study on the HPLC fingerprint of toad skin from different regions

Objective:To study the HPLC fingerprint of toad skin and provide a reliable method for quality control and identification.Methods:It used HPLC for detection and Computer Aided Similarity Evaluation System for processing and analysing HPLC fingerprint.Results:①The common pattern of HPLC fingerprint of toad skin was astablished,29 peaks were identified as the characteristic fingerprints,in which 9 peaks corresponded to 9 bufogenins.②Each sample′s similarity of relative retention time was all above 0.99,but the similarity of relative peak areas was low.Conclusion:①The method is accurate and with good reproducibility.The fingerprints can be used for the identification and quality control of toad skin.②The toad skin from different regions are stable in composition,but the contents of the components are different.