青皮的指纹图谱研究

目的为青皮药材的质量控制标准提供依据,并对四花青皮和个青皮进行区分.方法采用气相色谱法和高效液相色谱法对 10个青皮样品进行测定,并对获取的指纹图谱采用加权相似度计算和进行基于主成分分析的投影法研究.结果 气相色谱和液相色谱的结果均表明四花青皮和个青皮之间存在明显差异.这些差异是否会对药效产生显著影响,还需要药理实验证明.以青皮样品为例可知,对于样品中某一物质含量很高的体系,加权相似度是一种行之有效的方法.结论 该方法简便、可靠、重现性好,为青皮药材质量控制标准的确立奠定了基础.

Studies on Fingerprints of Pericarpium Citri Reticulatae Viride

Objective To establish the standard of quality control for Pericarpium Citri Reticulatae Viride (PCRV) and to identify two kinds of PCRV which are collected in different times. Methods In this article,volatile components and flavonoid in 10 batches of samples which were collected from eight provinces were determined by GC and HPLC-DAD,respectively. Their fingerprints were handled by weighted similarity of range and by principal component analysis (PCA). Results According to the result of similarity and classification,there were obvious differences between the two kinds of PCRV.To know whether the differences have great influences on the pharmacological actions of PCRV, pharmacological studies will be needed. Weighted similarity is suitable for this system which has a high content of similar components. Conclusion These methods are effective and will help us to establish the criterion of quality control for PCRV.