中文摘要：

目的：以21种不同产地的延胡索中药色谱指纹图谱为基础，采用化学计量学方法对其进行化学模式识别，并对不同的化学模式识别方法进行比较。方法：将指纹图谱信息进行预处理，经过峰对齐及标准化后，用MATLAB数据处理软件进行模式识别分析。结果：对21种样品进行了分类和鉴别，采用此方法所得结果与实际相符合。结论：本文方法结果可靠，可用于不同产地的中药延胡索的分类和鉴别。

英文摘要：

Objective： Discussed in this paper is the application of chemometrics technique： chemical pattern recognition for classify chromatographic fingerprinst of 21 batches of Rhizom Corydalis from different habitats ,and compare with different method of chemical pattern recognition. Methods： Pretreat the chromatographic fingerprint of 21 batches of samples at first, after the process of peak alignment and normalization, chemical pattern recognition process was carried out with MATLAB. Results：The results obtained are accord with the known ones. Conclusion： This method is reliable, and can be used for classify Rhizom Corydalis from different habitats.