Pharmacognosy Of Traditional Chinese Medicine Alisma Study

The subject of studies on species and quality evaluation of Rhizoma Alismatis was come from apart of the Standardization Study of Rhizoma Alismatis Quality Standard. The research works were divided into three aspects, which included the literatures research; the research of species and quality evaluation of Rhizoma Alismatis and the quality research of standard. The results of identification of species demonstrated that the Rhizoma Alismatis of producing Sichuan, Fujian and jiangxi is the diy rhizome of Alisma orientalis (Sam.) Juzep.; Rhizoma Alismatis of producing Guangxi is the dry rhizome of Alisma canaliculatum A.Braun et Bouche. The results of determination of UV and IR shown that the solution of methanol extraction of good Zexie absorbed in 204. l+0.5nm in UV spectrum, the dry substance of water extraction of good Zexie absorbed in 3402,2933 l642,14O6,1054 and 927cn< in IR spectl-ul-n .They are different from the spectrum of Zexie of producing Guangxi and Sichuan Nanchong. The results of thin-layer chromatography should have the spots of 23-alisol B rnonoacetate .The result of chromatographic fingerprint of HPLC shown that good Zexie has the ten peaks of fingerprint .The 4 retention time of characteristic peak of 23-alisol B monoacetate is 40.25 minute. The retention time of every peak is stable time. But the retention time of ratio of every peak is changeable. I-IPLC was used to determine the content of Zexie including different collection time, different method of dry, different the process of preparing, different producing areas and origin .The results shown that the content of 23-alisol B monoacetate is higher in Zexie of collection in April, process of preparing with wine, producing Sichuan. The content of 23-alisol B monoacetate of Zexie should exceed the content limit of 0.04%. The results of determining trace element shown Zexie contains 16 kinds of trace elements.