title: [Derivative spectrophotometric--signal multiplier method and its application to the determination of aspirin in Xiaoer Tuishao Pian].
abstract: A Microcomputer was used to process the spectral data measured on a manual spectrophotometer (UV-7520) for the determination of aspirin and acetaminophen in Xiaoer Tuishao Pian, using the derivative spectrophotometric-signal multiplier method. The method is simple and rapid. The mean recovery (%) of aspirin was 99.74 +/- 0.46. Dual wavelength method was used for the determination of acetaminophen and the recovery was 99.54 +/- 0.52%.
authors.affiliation: Guangxi Liuzhou Perfecture Pharmaceutical Factory, Liucheng.
authors.forename: R G
authors.initials: RG
authors.lastname: Lu
mesh_terms: D000082:Acetaminophen / Q000032:analysis*; D001241:Aspirin / Q000032:analysis*; D004338:Drug Combinations; D008433:Mathematics; D008838:Microcomputers; D013056:Spectrophotometry, Ultraviolet; D013607:Tablets
chemical_list: D004338:Drug Combinations; D013607:Tablets; D000082:Acetaminophen; D001241:Aspirin