title: [Quality standards for qingwei huanglian pills].
abstract: In the paper systematic studies on quality standards for Qingwei Huanglian Pills are reported, along with the TLC identification of Gardenia jasminoides, Scutellaria baicalensis and Anemarrhena asphodeloides and the quantitative determination of berberine in Coptis chinensis and Phellodendron chinese by TLC densitometric method. To simplify the operation, the same solvent was used for both the identification and determination. The quantitative method is simple, sensitive, reproducible and accurate. The recovery of berberine is 99.48%. The coefficient of variation is 1.42%.
authors.affiliation: Hebei Provincial Institute for Drug Control, Shijiazhuang.
authors.forename: G R
authors.initials: GR
authors.lastname: Han
authors.forename: Y D
authors.initials: YD
authors.lastname: Wang
authors.forename: L
authors.initials: L
authors.lastname: Feng
authors.forename: Z Q
authors.initials: ZQ
authors.lastname: Liu
authors.forename: H B
authors.initials: HB
authors.lastname: Zhang
mesh_terms: D001599:Berberine / Q000032:analysis*; D002855:Chromatography, Thin Layer; D003720:Densitometry; D004338:Drug Combinations; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D011786:Quality Control
chemical_list: D004338:Drug Combinations; D004365:Drugs, Chinese Herbal; D001599:Berberine