title: [TLC scanning determination of baicalin content in niuhuang qingxin pills].
abstract: Baicalin in the samples was extracted with ultrasonic wave, the extract was spotted on thin-layer plates of gel GF254 and developed with the mobile phase consisting of toluene-ethylacetate-formic acid (2:3:2.2). Determinations were carried out with Shimadzu CS-930 TLC scanner with lambda s = 280 nm and lambda R = 207 nm. The linear range was 0.46-4.6 micrograms/ml. The average recovery of baicalin from the samples was 98.35%, RSD = 2.82%.
authors.affiliation: Air Force Medical College, Jilin.
authors.forename: Y
authors.initials: Y
authors.lastname: Yan
authors.forename: D
authors.initials: D
authors.lastname: Li
authors.forename: G
authors.initials: G
authors.lastname: Wu
mesh_terms: D000890:Anti-Infective Agents / Q000032:analysis*; D002855:Chromatography, Thin Layer; D003720:Densitometry; D004338:Drug Combinations; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D005419:Flavonoids / Q000032:analysis*
chemical_list: D000890:Anti-Infective Agents; D004338:Drug Combinations; D004365:Drugs, Chinese Herbal; D005419:Flavonoids; C000606486:niuhuang qingxin; C038044:baicalin