An HPLC Fingerprint Identification of Dried Barks of Ilex rotunda and Ilex godajam

[Objectives] A simple and reliable HPLC fingerprint method was developed for the identification of dried barks of Ilex rotunda and I. godajam. [Methods] Nine batches of dried barks of I. rotunda,and seven batches of dried barks of I. godajam collected from different pharmacies and arboretums in different regions of China were used to establish fingerprints. The software Similarity Evaluation System of Chromatographic Fingerprints of Traditional Chinese Medicine( 2004 A Edition) was used to evaluate the fingerprints. [Results]The fingerprints of dried barks of I. rotunda and I. godajam were established. Methodological study met the technical requirements of fingerprints. The similarities of the fingerprints of dried barks of I. rotunda and I. godajam were all more than 0. 8 and 0. 9 respectively. There were 31 and 28 common peaks in I. rotunda and I. godajam,which could be classified into two clusters by principal component analysis( PCA) and hierarchical cluster analysis. [Conclusions] The feasibility and advantages of used HPLC fingerprints were verified,and the results indicated that the HPLC fingerprint as a characteristic distinguishing method combining similarity evaluation,principal component analysis and hierarchical cluster analysis can be successfully used to identify the authenticity of dried barks of I. rotunda and I. godajam.

基于HPLC指纹图谱对救必应与其伪品的鉴别研究

目的建立救必应与其伪品米碎木的HPLC指纹图谱,进行真伪鉴别。方法收集各地名为"救必应"的药材,采用HPLC指纹图谱方法对救必应及其伪品米碎木进行检测,采用《中药色谱指纹图谱相似度评价系统2004A版》对指纹图谱进行评价。结果建立了救必应和米碎木的HPLC指纹图谱,方法学考察符合指纹图谱技术要求。救必应与其伪品米碎木指纹图谱轮廓特征明显不同,救必应有31个共有峰,米碎木有28个共有峰。主成分分析可将样品分为2组,聚类分析也可将样品分为2类。结论采用HPLC指纹图谱及其数据分析,可以对救必应与其伪品进行鉴别,为救必应的质量评价提供有效方法。