Electrodes and Processes:

Voltammetry is the general name given to a group of electroanalytical methods in which the current is measured as a function of applied potential wherein the polarization of the indicator or working electrode is enhanced. For this, the working electrodes used in voltammetry are generally microelectrodes having surface area of few square micrometers to square millimeters. That field has been developed from Polarography (developed by Heyrovsky); which is a particular type of voltammetry, which used a dropping mercury electrode as the working micro-electrode. Voltammetry includes all techniques in which the current potential measurements are made at stationary and fixed electrodes. You will be in a position to understand different voltammetric techniques after studying this unit.