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Rapid and accurate determination of chlorpheniramine maleate, noscapine hydrochloride and guaiphenesin in binary mixtures by derivative spectrophotometry

✍ Scribed by Nora B. Pappano; Yolanda C. De Micalizzi; Nora B. Debattista; Ferdinando H. Ferretti

Book ID
117223993
Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
429 KB
Volume
44
Category
Article
ISSN
0039-9140

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Assay of mixtures of chlorpheniramine ma
Assay of mixtures of chlorpheniramine maleate, pyrilamine meleate and phenylpropanolamine hydrochloride in cold-allergy tablets by difference spectrophotometry
✍ Henry S.I. Tan; Geraldine C. Salvador πŸ“‚ Article πŸ“… 1986 πŸ› Elsevier Science 🌐 English βš– 448 KB

Mixtures ofchlorpheniramine maleate (CPM) and phenylpropanolamine hydrochloride (PPA), with and without pyrilamine maleate (PRM), are assayed by U.V. difference spectrophotometry without prior separation. The spectra for CPM and PRM in solutions at pH 1 and pH 6 show differences whereas the spectra