Reference electrodes including Ag/AgCl and non-aqueous Ag/Ag+ electrodes
High quality reference electrodes suitable for cyclic voltammetry electrochemistry cells
Aqueous Ag/AgCl and non-aqueous Ag/Ag+ reference electrodes are two of the most commonly used reference electrodes for cyclic voltammetry and other electrochemical studies.
Silver wire coated with silver chloride in direct contact with saturated potassium chloride, typically 3M in concentration in distilled water
Simple, stable, and capable of miniaturization
Silver wire in direct contact with 0.01N silver nitrate of acetonitrile solution sealed with a ceramic frit
Ideal when organic solvent such as acetonitrile is used in the electrolyte system
Reference electrodes are used as the third electrode in three electrode electrochemical cell systems for cyclic voltammetry and similar studies. They are sometimes referred to simply as the third electrode.
Importantly, reference electrodes have a stable, known and well-defined electrochemical potential. The composition of a standard reference electrode should remain effectively unchanging and constant during the process of electrochemical test and measurement. The role of the reference electrode is to provide a stable potential for controlled regulation of the working electrode potential and in doing so allow the measurement of the potential at the working electrode without passing current through it.
An ideal reference electrode should also have zero impedance. This is determined by the resistance of its isolation junction.
Our aqueous Ag/AgCl and non-aqueous Ag/Ag reference electrodes are sold sealed in a ceramic frit junction, which separates the internal filling solution of the reference electrode from the test electrolyte. It is advised that the reference electrode should be in as close contact to the working electrode as possible to reduce Ohmic drop between them.
Ag/AgCl Reference Electrode
Non-aqueous Ag/Ag+ Reference Electrode
*All dimensions are in millimetres.
Pricing and Options
|Product Name||Product Code||Price|
|Ag/AgCl Reference Electrode||C2015B1||£83.00|
|Non-aqueous Ag/Ag+ Reference Electrode||C2015A1||£83.00|
To the best of our knowledge the technical information provided here is accurate. However, Ossila assume no liability for the accuracy of this information. The values provided here are typical at the time of manufacture and may vary over time and from batch to batch.