何首乌及其混伪品理化鉴别（Physical and chemical identification of Radix Polygoni multiflori and its mixture）.doc

何首乌及其混伪品理化鉴别（Physical and chemical identification of Radix Polygoni multiflori and its mixture） Physical and chemical identification of Radix Polygoni multiflori and its mixture Update Date: 2010-07-08 Click: Chen Jiyan, Chen Lihuang, Liang Yongan, Zhi Bin, Tong Yuxi Abstract using TLC and UV spectrophotometry, emodin, chrysophanol and two stilbene glucoside were used as objective indexes to identify Radix Polygoni multiflori and its mixture. The method is simple, reliable and reliable. The similarity between the physical and chemical characteristics of Polygonum multiflorum and Polygonum multiflorum revealed that the two contained many kinds of the same ingredients, which provided information for finding new medicinal resources of Polygonum multiflorum thunb. Keywords Radix Polygoni Multiflori; mixture; TLC; UV spectrum; identification; Physical-Chemical, Identification, of, Polygonum, multiflor, um, Thunb., and, Adulterants, its Chen, Jiyan, Chen, Li, Huang, Liangyong, et, Al Shiyan, Taihe, Hospital, Shiyan 442000 Abstract With emodin, chrysophanol and stilbene as ma terial index, Polygonum multiflorum Thunb. and its adulterants are identificated by TLC and UV-spectrum. The method is simple and dependable. The similarity of physical-chemical identification character between Polygonum Cillinerve (Nakai) Ohwi and Polygonum multiflorum Thunb. indicates that they have many same compone nts. The result provides information for finding new MEDICINIAL resource of Poly gonum multiflorum Thunb. Key, words, Polygonum, mutiflorum, Thunb.; Adulterant; TLC;; UV-spectrum; Identification The Radix Polygoni multiflori and its mixed products were identified by TLC and UV spectra. The characteristics of fluorescence spectrum and UV spectrum were compared and compared. The tables were simple and direct. 1 materials and instruments 1.1 material: Polygonum multiflorum and its adulterants Latin name, place of collection and identification of the names of experts with the above 1; rhein