title: [Determination of Keganmin tablet with multi-wavelength K-factor spectrophotometry].
abstract: The contents of phenacetin, aminopyrine and caffeine in Keganmin tablet were determined simultaneonsly with multiwavelength K -factor spectrophotometry. The result is accurate and the method is rapid. The average recoveries and relative standard deviations of the analysis for phenacetin, aminopyrine and caffeine were 99.91%, 0.41%; 100.1%, 0.29%; 100.1%, 0.56%, respectively.
authors.affiliation: Department of Pharmaceutical Analysis, Hebei Medical University, 050017 Shijiazhuang.
authors.forename: L
authors.initials: L
authors.lastname: Zhang
authors.forename: Z
authors.initials: Z
authors.lastname: Yuan
authors.forename: Q
authors.initials: Q
authors.lastname: Wang
authors.forename: W
authors.initials: W
authors.lastname: Jiang
authors.forename: L
authors.initials: L
authors.lastname: Liu
mesh_terms: D000632:Aminopyrine / Q000032:analysis / Q000737:chemistry*; D002110:Caffeine / Q000032:analysis / Q000737:chemistry*; D002138:Calibration; D004338:Drug Combinations; D004364:Pharmaceutical Preparations / Q000737:chemistry*; D010615:Phenacetin / Q000032:analysis / Q000737:chemistry*; D013053:Spectrophotometry; D013607:Tablets
chemical_list: D004338:Drug Combinations; C549512:Keganmin; D004364:Pharmaceutical Preparations; D013607:Tablets; D000632:Aminopyrine; D002110:Caffeine; D010615:Phenacetin