Adsorptive Stripping Voltammetry:
In this method analyte is adsorbed on the electrode surface and there is no electrolysis step and after complete deposition the potential is scanned in anodic or cathodic direction depending on whether the analyte is to be oxidized or reduced.
The deposition step in this method amounts to an electrochemical pre-concentration of the analyte, i.e. the concentration of the analyte on the surface of the microelectrode is greater than the bulk of solution and hence these methods are extremely sensitive and the detection limit can be improved by factors of 106 for selected species. A few analytes analysed through this method are cocaine and testosterone.