Description

The three-electrode electrochemical Screen-Printed Electrode (SPE) features a Gold Working Electrode (WE), making it suitable for a wide range of analytical applications. Each electrode is manufactured using screen-printing technology and consists of a circular gold working electrode (2 mm or 3 mm in diameter), a silver pseudo-reference electrode, and a gold counter electrode.

The silver electrode forms a silver chloride layer when used in chloride-containing solutions, effectively creating the widely used Ag/AgCl reference system. The compact electrode size minimizes the required sample volume, and its low cost allows for convenient disposable use.

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Preparation and Handling

• Electropolishing: We recommend electropolishing the electrodes before use to improve reproducibility and performance.

• Packaging Formats:

  • Standard Electrodes: Delivered in pre-cut strips of 26 units (35 mm long) or 29 units (50 mm long).

  • Enhanced Electrodes: Delivered in boxes of 25 individual electrodes.

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Application and Customization

Due to the specific electrode design, samples can be applied as a single droplet. This avoids the waste of expensive reagents and precious samples. The electrodes can be modified via direct adsorption or chemical bonding, allowing various biomolecules to be attached to the surface. These customizations make these electrodes ideal for diverse biosensing and electrochemical research.

Enhanced Version

The Enhanced Version of this electrode features a working electrode that has undergone electrochemical treatment to improve the surface properties, specifically by reducing the impedance at the interface.

WE diammeter	Substrate Lenght	Surface	Product Reference
2 mm	35 mm	blank	IS-W1-2.C1.RS.35
3 mm	35 mm	blank	IS-W1-3.C1.RS.35
2 mm	35 mm	enhanced	IS-W1-2.C1.RS.35-M1
3 mm	35 mm	enhanced	IS-W1-3.C1.RS.35-M1
2 mm	50 mm	blank	IS-W1-2.C1.RS.50
3 mm	50 mm	blank	IS-W1-3.C1.RS.50
2 mm	50 mm	enhanced	IS-W1-2.C1.RS.50-M1
3 mm	50 mm	enhanced	IS-W1-3.C1.RS.50-M1