High-performance liquid chromatographic (HPLC) fingerprints of 12 authentic samples and 26 commercial samples of Fructus Aurantii Immaturus (FAI) from different sources of China were measured. Firstly, the main bioactive compounds in citrus herb, namely naringin and hesperidin, were identified and quantitated. Then, principal components analysis (PCA) was performed to differentiate and classify the studied samples based on the principal peaks and entire chromatograms, respectively. Hierarchical clustering analysis (HCA) and similarity analysis ...
