title: [Determination of ampelopsin and myricetin in Ampelopsis cantoniensis].
abstract: Ampelopsis cantoniensis (Hook. et Arn.) Planch. is a Chinese herbal medicine rich in flavonoids. A method to determine flavonoids in the herbal was studied. After the herbal was extracted in hot water, Ampelopsin and myricetin in the extract were separated by polyamide column with eluent of ethanol-water and measured by spectrophotometry. As results, 100 g of the dry herbal contains 25.2 g of ampelopsin (RSD = 1.7%, recovery = 97.0%) and 1.77 g of myricetin (RSD = 3.3%, recovery = 103%).
authors.affiliation: Sun Yat-sen University of Medical Sciences, Guangzhou 510089.
authors.forename: Z
authors.initials: Z
authors.lastname: Chen
authors.forename: M
authors.initials: M
authors.lastname: Wang
authors.forename: P
authors.initials: P
authors.lastname: Cai
authors.forename: X
authors.initials: X
authors.lastname: Chen
mesh_terms: D032421:Ampelopsis / Q000737:chemistry*; D002855:Chromatography, Thin Layer; D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000302:isolation & purification; D000431:Ethanol; D005419:Flavonoids / Q000032:analysis* / Q000302:isolation & purification; D006358:Hot Temperature; D010946:Plants, Medicinal / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D014867:Water
chemical_list: D004365:Drugs, Chinese Herbal; D005419:Flavonoids; D014867:Water; C106407:ampelopsin; D000431:Ethanol; C040015:myricetin