title: Evaluation of certain pharmaceuticals with hexa-amminecobalt(III) tricarbonatocobaltate(III)-I Determination of some N-substituted phenothiazine derivatives.
abstract: Hexa-amminecobalt(III) tricarbonatocobaltate(III) (HCTC) has been used for the determination of six N-substituted phenothiazine derivatives. The drugs in 10% v/v sulphuric acid medium were titrated with 5 x 10(-3)M HCTC with visual or spectrophotometric end-point detection. The stoichiometry of the reaction was assumed and a reaction mechanism suggested. The methods were applied to the analysis of dosage forms with results comparable to those given by the official methods.
authors.affiliation: Department of Analytical Chemistry, Faculty of Pharmacy, University of Mansoura, Mansoura, Egypt.
authors.forename: M I
authors.initials: MI
authors.lastname: Walash
authors.forename: F
authors.initials: F
authors.lastname: Belal
authors.forename: F A
authors.initials: FA
authors.lastname: Aly