Differentiation of rhizoma et radix polygoni cuspidati from closely related herbs by HPLC fingerprinting |
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| Authors: | Qian Guangsheng Leung Sik-Yuen Lu GuangHua Leung Kelvin Sze-Yin |
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| Institution: | Research and Development Division, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong Special Administrative Region, P.R. China. |
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| Abstract: | An HPLC-DAD fingerprinting profile of Rhizoma Et Radix Polygoni Cuspidati was established basing on the consistent chromatographic features of 24 authentic herb samples. The major types of chemical constituents, stilbenes and anthraquinones, were analyzed and included in the fingerprint. Eight common peaks of Polygonum Cuspidatum were identified by using HPLC-MS. The developed fingerprint was applied to differentiate Rhizoma Et Radix Polygoni Cuspidati from Radix Polygoni Multiflori and Radix Et Rhizoma Rhei. Although the three herbs belong to the family of Polygonaceae, the results indicated that these could be differentiated by using the established method. |
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