Determination of active ingredients in pharmaceutical preparations containing phenazopyridine hydrochloride by first-derivative UV spectrophotometry


S.T.P. Pharma Sciences, vol.1, no.4, pp.276-279, 1991 (Scopus) identifier

  • Publication Type: Article / Article
  • Volume: 1 Issue: 4
  • Publication Date: 1991
  • Journal Name: S.T.P. Pharma Sciences
  • Journal Indexes: Scopus, Analytical Abstracts, International Pharmaceutical Abstracts
  • Page Numbers: pp.276-279
  • Lokman Hekim University Affiliated: No


In this paper, rapid first derivative ultraviolet spectrophotometric assay procedures are described for the simultaneous determination of phenazopyridine hydrochloride, ampicillin trihydrate, nitrofurantoin and sulfisoxazole in the binary mixtures of phenozopyridine hydrochloride/ampicillin trihydrate, phenazopyridine hydrochloride/nitrofurantoin and phenazopyridine hydrochloride/sulfisoxazole. The methods were successfully applied to the tablets and capsules containing these binary combinations. The specificity, accuracy and precision of the methods have been assessed.