SEARCH Articles Figures Tables In a cell used for electroanalytical measurements there are always three electrodes immersed in an electrolyte solution , which is usually deoxygenated by passage of an inert gas prior to the beginning of the measurement. The working electrode is the electrode at which the electrochemical process being investigated takes place. The reference electrode is the electrode with a constant potential that is used as the reference standard against which the potentials of the other electrodes in the cell are measured. Finally the auxiliary electrode serves as a sink for electrons so that current can be passed from the external circuit through the cell. Note that the sample is not stirred during the measurement, and hence only material near the electrode surface is reduced or oxidised. This enables the experiment to be repeated many times as fresh reactants diffuse to the electrode from the bulk solution. [Publishers Imprint] See Also: In a cell used for electroanalytical measurements there are always three electrodes immersed in an electrolyte solution , which is usually deoxygenated by passage of an inert gas prior to the beginning of the measurement. The working electrode is the electrode at which the electrochemical process being investigated takes place. The reference electrode is the electrode with a constant potential that is used as the reference standard against which the potentials of the other electrodes in the cell are measured. Finally the auxiliary electrode serves as a sink for electrons so that current can be passed from the external circuit through the cell. Note that the sample is not stirred during the measurement, and hence only material near the electrode surface is reduced or oxidised. This enables the experiment to be repeated many times as fresh reactants diffuse to the electrode from the bulk solution.