cyclic voltammetry

Cyclic voltammetry (CV) is an electroanalytical technique used for both qualitative and quantitative analysis of substances in a solution. It involves applying a regularly varying potential to an electrode while monitoring the resulting current.12

In CV, the potential is scanned linearly in one direction and then reversed, creating a cycle. This process causes electrochemical reactions, such as reduction and oxidation, to occur at the electrode surface. The resulting plot of current versus potential, known as a voltammogram, shows characteristic peaks or waves at specific potentials for different substances. The height of these peaks is proportional to the analyte's concentration, allowing for quantitative analysis. CV is a potentiodynamic method, meaning it observes current as a function of potential while the latter is varied at a constant rate.213