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Yao xue xue bao = Acta pharmaceutica Sinica

[Application of derivative spectrophotometric signal multiplier method in multicomponent mixture--determination of moroxydine hydrochloride in Gan Mao Qing capsules].


PMID 1300034

Abstract

This paper provides a basic principle and experimental technique of derivative signal multiplier spectrophotometry in multicomponent mixture. A microcomputer was used to process the spectral data measured on a manual spectrophotometer (UV-7520) for the determination of moroxydine hydrochloride in Gan Mao Qing capsules. Quantitative analysis of multicomponent mixture can be done without sample separation. The selection of optimal wavelength pairs is performed through the program with a computer. The method needs no special spectrophotometer and is simple, rapid and easy to operate. The mean recovery was 99.98 +/- 0.53% (n = 12).

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278610
Moroxydine hydrochloride, 99%
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