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Tag Archives: reference electrode
Electrochemical Cell for Voltammetry
A typical arrangement for a voltammetric electrochemical cell is shown here. In addition to the working electrode, the reference electrode, and the auxiliary electrode, the cell also includes a N2-purge line for removing dissolved O2, and an optional stir bar. … Continue reading
Reference Electrodes
In a potentiometric electrochemical cell one half-cell provides a known reference potential and the potential of the other half-cell indicates the analyte’s concentration. The ideal reference electrode provides a stable, known potential so that any change in Ecell is attributed to analyte’s … Continue reading
Schematic Diagram of a Manual Potentiostat
A potentiostat is used to set and control the potential of a working electrode. A schematic diagram for a manual potentiostat is shown here where W is the working electrode, A is the auxiliary electrode, R is the reference electrode, SW is … Continue reading
Schematic Diagram of a Galvanostat
A galvanostat is used to control the current flowing through an electrochemical cell. A schematic diagram of a constant-current galvanostat is shown here where A is the auxiliary electrode, W is the working electrode, R is an optional reference electrode, E is a … Continue reading