Effect of various components of developing photographic solutions on parameters of electro-oxidation-reduction peaks of hydroquinone in neutral and acid supporting solutions on a graphite-epoxy composite electrode with surface mechanically renewed directly in solution prior to each polarization cycle was studied. A procedure is suggested for voltammetric determination of the content of hydroquinone from the cathodic peak in a freshly prepared developing photographic solution and from the anodic peak in a solution allowed to stay upon preparation for 1 day and more.
Russian Journal of Applied Chemistry – Springer Journals
Published: Aug 17, 2010
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