Spectrophotometric Determination of Procaine Hydrochloride in Pharmaceutical Preparations via Diazotization-Coupling Reaction with Phenol
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چکیده
منابع مشابه
Spectrophotometric Determination of Vancomycin Hydrochloride in Pharmaceutical Preparations through Diazotization and Coupling Reactions
Two simple, sensitive, accurate and economic methods A and B have been developed for the quantitative estimation of vancomycin hydrochlorid (VHC) and its formulations using another two drug compounds as a coupling reagents.The proposed methods are based on a coupling reaction between VHC and diazotized procain (method A) or diazotized sulphacetamide sodium (method B) in alkaline medium to form ...
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A new rapid, specific, and convenient colorimetric method for the determination of procaine hydrochloride in pharmaceutical preparations is described. This method is based on measurement of the intensity of the orange-red color developed when procaine hydrochloride is allowed to react with 1,2-naphthoquinone-4-sulfonic acid sodium salt in aqueous solution. Beer's law is followed over 6.0--20.0 ...
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Neste trabalho é proposto um método espectrofotométrico modificado para a determinação de diclofenaco em preparações farmacêuticas. Usa-se solução de cobre(II) como reagente, o que leva à formação de um complexo cobre(II)-diclofenaco de cor verde, com máximo de absorção em 680 nm. Foram estudadas as influências: do pH; da concentração de cobre(II); do uso de ácido acético na solução de cobre(II...
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ژورنال
عنوان ژورنال: Asian Journal of Chemistry
سال: 2015
ISSN: 0970-7077,0975-427X
DOI: 10.14233/ajchem.2015.19169