title: [Application of colorimetric-equal value derivative spectrometry to the determination of cholic acid in niuhuang jiedu pian (tablet)].
abstract: A colorimetric-equal value derivative spectrometry for the quantitative analysis of cholic acid in Niuhuang Jiedu Pian(tablet)containing 8 crude drugs is reported. The method is free from the interferuce of borneol rhubarb and other components without separation. The average recovery of cholic acid is 99.75 +/- 0.79% (X +/- CV).
authors.affiliation: Weifang Institute for Drug Control, Shandong.
authors.forename: T
authors.initials: T
authors.lastname: Li
mesh_terms: D002793:Cholic Acids / Q000032:analysis*; D004338:Drug Combinations; D004365:Drugs, Chinese Herbal / Q000032:analysis*; D008419:Materia Medica / Q000032:analysis*; D013057:Spectrum Analysis / Q000379:methods; D013607:Tablets
chemical_list: D002793:Cholic Acids; D004338:Drug Combinations; D004365:Drugs, Chinese Herbal; D008419:Materia Medica; D013607:Tablets