Anodic stripping determination of Pt(IV) based on the anodic oxidation of Hg and Cd from electrochemically deposited Hg–Pt and Hg–Cd alloy phases

Abstract

An anodic stripping voltammetric determination of Pt(IV) is described which is based on depositing intermetallic mercury–platinum and cadmium–platinum alloy phase on the surface graphite electrode, and recording the oxidation peak of mercury and cadmium from these phases with the help of linear scan voltammetry. Three alloy phases are formed in the case of mercury–platinum, whereas only one phase appears in the case of cadmium–platinum.