FREE shipping to on qualifying orders when you spend or more, processed by Ossila BV. All prices ex. VAT. Qualifying orders ship free worldwide! Fast, secure, and backed by the Ossila guarantee. It looks like you are visiting from , click to shop in or change country. Orders to the EU are processed by our EU subsidiary.

It looks like you are using an unsupported browser. You can still place orders by emailing us on, but you may experience issues browsing our website. Please consider upgrading to a modern browser for better security and an improved browsing experience.

Product Code C2014A1
Price $238 ex. VAT

Quality assured

Expert support

Volume discounts

Worldwide shipping

Fast and secure

Oxidation, solvent and acid resistant platinum wire counter electrodes

Widely used in standard electrochemistry cells for cyclic voltammetry and more

Platinum wire counter electrodes (also known as auxiliary electrodes) are widely used in standard electrochemistry cells for cyclic voltammetry, linear sweep voltammetry, and other electrochemical techniques. They are favoured over others largely due to their low price and resistance to oxidation, solvents and acids. Our 99.99% purity platinum wire counter electrodes are available in polytetrafluoroethylene (PTFE) plastic bodies.

Buy our high-quality counter electrode in packs of 5 to save up to 5% or packs of 10 to save up to 10%. Our counter electrode is also available in our excellent value electrochemical cells kit and our low price potentiostat bundle for a complete system. Qualifying orders ship free as part of the Ossila Guarantee.

Platinum wire counter electrode

Platinum Wire Counter Electrode

High quality counter electrode with PTFE body and 99.99% purity platinum

From £190

Platinum wire counter electrode multipacks

Counter Electrode Multipacks

Buy counter electrode in pack of 5 to save up to 5% or pack of 10 to save up to 10%

From £950

Electrochemical cell kit with electrodes

Electrochemical Cell Kit

Excellent value electrochemical kit with reference, working and counter electrode

From £560

Potentiostat with Cell and Electrodes

Potentiostat with cell and electrodes
  • Affordable
  • Easy to Use
  • High Accuracy + Precision

Worldwide Shipping £2100

What is the Function of a Counter Electrode?

In a three electrode system, current is recorded as electrons flowing through the working electrode and the counter electrode. In this set up, the potential of the counter electrode is not normally measured but is adjusted to balance the reaction occurring at the working electrode.

When reduction occurs at the working electrode, oxidation takes place at the counter electrode. To avoid oxidised species generated at the counter electrode interfering and contaminating with any ongoing reactions at the working electrode, the counter electrode can sometimes be physically separated from the working electrode compartment using a glass frit.

In a two electrode system, a single electrode serves as both the counter electrode and the reference electrode. In this case, the surface area of the counter electrode should be greater than the surface area of the working electrode to ensure that the kinetics of the reaction occurring at the counter electrode do not inhibit those occurring at the working electrode.

Why use a Platinum Counter Electrode?

Platinum is a good choice of material for a counter electrode mostly due to its inertness. It is important for all electrochemical methods that the counter electrode allows current to flow without causing a chemical change in the solution being studied, as this would alter the results of the experiment or measurement. Platinum counter electrodes are oxidation, solvent and acid resistant.


All dimensions are in millimetres.

Platinum wire counter electrode dimensions
Platinum wire counter electrode dimensions (mm)

Purity 99.99%

Pricing and Options

Product Name Product Code Price
Platinum Wire Counter Electrode C2014A1 £190
Platinum Wire Counter Electrode - Pack of 5 C2014A1-5 £950
Platinum Wire Counter Electrode - Pack of 10 C2014A1-10 £1700
Electrochemical Cell Kit with Electrodes C2016A1 £560
Luggin Capillary Electrochemical Cell Kit with Electrodes C2016B1 £620

Electrode Polishing Kit EPK-3

Ossila Electrode Polishing Kit, EPK-3
  • Restore Electrodes
  • High Quality Polishing
  • Great Value

Worldwide Shipping £165

To the best of our knowledge the information provided here is accurate. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. Products may have minor cosmetic differences (e.g. to the branding) compared to the photos on our website. All products are for laboratory and research and development use only.

Return to the top