Stripping Methods:

This method is the most sensitive electrochemical method for the quantitative analysis of microquantitative electroactive analytes that oxidize or decrease reversibly at solid electrodes or form insoluble species at the electrode surface which could be consequently removed electrochemically and analysed.

There are basically two steps are involved in this technique

1. The analyte of interest is electrolytically deposited on the working electrode by controlled potential electrolysis.

2. A reverse potential seal or stripping step is applied in which the deposited analyte is removed from the electrode.

The first step is basically preconcentration or electrodeposition while the second one is the stripping step. Three various category of this technique are available.