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[Objective] To establish a method for distinguishing RADIX GINSENG from its counterfeits including RADIX PLATYCODI,RADIX ISATIDIS and RADIX GLEHNIAE by ultraviolet absorption spectra lines group (UASLG).[Method] The 4 kinds of medicines were respectively extracted with five different solvents of water,ethanol,petroleum ether,ethyl acetate and chloroform.Then,their absorbance in UV and one-order derivative spectra was measured.[Result] There were obvious differences regarding peak position and absorbance in ultraviolet absorption spectra among RADIX GINSENG and RADIX PLATYCODI,RADIX ISATIDIS,RADIX GLEHNIAE.[Conclusion]The method is simple and accurate,and could be used to distinguish RADIX GINSENG from its counterfeits.
[Objective] To establish a method for distinguishing RADIX GINSENG from its counterfeits including RADIX PLATYCODI, RADIX ISATIDIS and RADIX GLEHNIAE by ultraviolet absorption spectra lines group (UASLG). [Method] The 4 kinds of drugs were extracted with five different solvents of water , ethanol, petroleum ether, ethyl acetate and chloroform.Then, their absorbance in UV and one-order derivative spectra was measured. [Result] There were obvious differences regarding peak position and absorbance in ultraviolet absorption spectra among RADIX GINSENG and RADIX PLATYCODI, RADIX ISATIDIS, RADIX GLEHNIAE. [Conclusion] The method is simple and accurate, and could be used to distinguish RADIX GINSENG from its counterfeits.