Stripping voltammetry in which material accumulated at the working electrode is electrochemically reduced in the stripping step. See figure.
Note: A peak-shaped cathodic stripping
voltammogram is obtained. Peak current depends on time of
accumulation, mass transport of analyte (stirring),
scan rate and mode (linear or pulse), and analyte concentration in solution.

Applied potential against time during the accumulation and stripping steps in cathodic stripping voltammetry.
Source:
PAC, 2020, 92, 641. 'Terminology of Electrochemical Methods of Analysis (IUPAC Recommendations 2019)' on page 681 (https://doi.org/10.1515/pac-2018-0109)