Voltammetry is the study of the current voltage relationships observed when electroactive species in solution are subject to oxidation or reduction at electrodes under carefully controlled conditions. This article describes the basic principle of voltammetry performed using the dropping mercury electrode (polarography). It discusses the various methods of voltammetry, namely, linear sweep voltammetry, cyclic voltammetry, and stripping voltammetry that are carried out with different electrode material. The article also explores the modern instrumentation and developments achieved in voltammetry, and provides an outline of additional data, such as values of the formation, or stability, and constants of complexes formed by shifting the half-wave potential, which can be obtained by voltammetry. Additionally, the article provides a brief account of the applications of voltammetry.
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