English Journal

Spectrophotometric Determination of Pipazethate HCl and Dextromethorphan HBr using Potassium Permanganate.

Gouda AA1, El-Sheikh R, El Shafey Z, Hossny N, El-Azzazy R.
International journal of biomedical science : IJBS.Int J Biomed Sci.2008 Dec;4(4):294-302.
Rapid, simple and sensitive validated spectrophotometric methods have been described for the assay of pipazethate HCl (PiCl) and dextromethorphan HBr (DEX) either in pure form or in pharmaceutical formulations. The proposed methods were based on the oxidation of the studied drugs by a known excess o
PMID 23675101

Spectrophotometric determination of pipazethate HCl, dextromethorphan HBr and drotaverine HCl in their pharmaceutical preparations.

Amin AS1, El-Sheikh R, Zahran F, Gouda AA.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.Spectrochim Acta A Mol Biomol Spectrosc.2007 Jul;67(3-4):1088-93. Epub 2006 Sep 28.
A simple, accurate and highly sensitive spectrophotometric method is proposed for the rapid determination of pipazethate hydrochloride, dextromethorphan hydrobromide and drotaverine hydrochloride using chromotrope 2B (C2B) and chromotrope 2R (C2R). The method consists of extracting the formed ion-as
PMID 17092767

Spectrophotometric determination of pipazethate hydrochloride in pure form and in pharmaceutical formulations.

El-Shiekh R1, Amin AS, Zahran F, Gouda AA.
Journal of AOAC International.J AOAC Int.2007 May-Jun;90(3):686-92.
Three simple, sensitive, and reproducible spectrophotometric methods (A-C) for the determination of pipazethate hydrochloride (PiCl) in pure form and in pharmaceutical formulations are described. The first and second methods, A and B, are based on the oxidation of the drug by Fe3+ in the presence of
PMID 17580620

Japanese Journal

Spectrophotometric Determination of Molybdenum (VI) Using Isothipendyl Hydrochloride and Pipazethate Hydrochloride in Alloy Steels and Soil Samples

Melwanki Mahaveer B.,Seetharamappa Jaldappa,Masti Saraswati P.
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 17(9), 1121-1123, 2001-09-10
NAID 10007177968