[RP-HPLC characteristics of Panax notoginseng].

Aim To develop the chemical characteristics of Panax notoginseng in order to control its quality.Methods The samples was extracted using pressurized liquid extraction(PLE) and analyzed by HPLC-DAD.The data were evaluated using the "similarity evaluation system for chromatographic fingerprint of TCM" software(version 2004A).Results The chromatographic characteristics of 28 Panax notoginseng from different places were established using HPLC-DAD,and 8 peaks among 13 typical ones in the chromatograms were identified by comparing with their reference compounds.The similarity of different samples was high(0.982±0.008,RSD=0.78%).Conclusion The chromatographic charac￣teristics are useful to control the quality of Panax notoginseng.