Derivative spectrophotometric--signal multiplier method and its application to the determination of aspirin in Xiaoer Tuishao Pian
Lu, R.G.
Yao Xue Xue Bao 26(3): 219-224
1991
ISSN/ISBN: 0513-4870 PMID: 1957663 Document Number: 374359
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%.