Polarographic and Voltammetric Investigations of 8-Hydroxy Naphthylazo)-5 Sulfonic Acid-Nickel Metal Complex

Abstract

The aim of this study is to elucidate the structure of 8-hydroxy-7-(4- sulfo-1-naphthylazo)-5-quinolinesulfonic acid-nickel complex by using square wave voltammetry, differential pulse polarography, (DPP) and direct current polarography (DCP) techniques in Britton Robinson (BR) buffer and KNO <inf>3</inf> media. Two peak potentials have been determined for the nickel-azo complex in SWV, DCP and the ratio of metal-complex has been found to be 1:2 under the experimental conditions.