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A simple, rapid, and sensitive electrochemical method was developed for the determination of the organophosphate insecticide fenamiphos (FNP) and its main metabolite fenamiphos sulfoxide (FNX). The electrochemical behaviour was investigated by cyclic voltammetry and differential pulse voltammetry on a bare glassy carbon electrode. An oxidation peak was obtained for FNP and FNX at a bare glassy carbon...
In polymer electrolyte fuel cells, the platinum catalyst in its active form is found predominantly in an oxidized state. Formation and reduction of surface oxide species determine both the electrocatalytic activity of the oxygen reduction reaction as well as the rate of corrosive Pt dissolution. Understanding of mechanisms and rates of oxide formation and reduction is therefore essential in view of...
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