Square-wave Voltammetry Purpose

Square-wave Voltammetry (SWV) is used for both quantitative chemical analysis and study of the mechanism, kinetics, and thermodynamics of chemical reactions.

SWV used as an analytical tool offers three major advantages when compared to other electrochemical techniques.

Other techniques, such as cyclic voltammetry, are generally preferred over SWV for mechanistic and kinetic studies. However, square-wave voltammetry’s sensitivity allows mechanistic and kinetic measurements in solutions that are too dilute for more conventional study.

SWV is generally performed on a stationary solid electrode or a hanging mercury drop electrode. The SWV script in the Pulse Voltammetry software provides for mercury-drop generation, solution de-aeration, and experiment sequencing suitable for the most common applications for square-wave voltammetry.

Choose the type of electrode in the Electrode Setup Panel.

Additional sequencing steps suitable for square-wave anodic (or cathodic) stripping are implemented in the Pulse Voltammetry’s SWS (square-wave stripping) technique.