Amazon
Choose by electroplated or adhesive-bonded type, wire size, salt-bridge configuration, or matching PTFE cap.
AmazonProduct Overview
Internal silver wire is a key functional component of an Ag/AgCl reference electrode. It is suitable for electrochemical measurements in neutral aqueous solutions and can be combined with salt bridges, PTFE caps, and other accessories.
Select between electroplated and adhesive-bonded configurations according to the intended assembly method. Both types are suitable for laboratory electrochemical testing, teaching experiments, and reference electrode repair or replacement.
Available Configurations
Electroplated Ag/AgCl Wire
Available sizes include 0.6 x 70 mm, 0.6 x 80 mm, and 0.3 x 150 mm.
Suitable for making standard reference electrodes and replacing internal silver wires.
Adhesive-Bonded Ag/AgCl Wire
Available sizes include 0.3 x 70 mm and 0.3 x 100 mm.
The AgCl layer is firmly bonded to the silver wire for improved durability.
Salt-Bridge-Compatible Configurations
Choose 4 x 55 mm or 6 x 75 mm components to extend the electrode path, buffer solution contact, and reduce sample contamination.
Matching Assembly Accessory
The white PTFE cap is used for electrode assembly, fixation, and electrical insulation.
Product Features
- Suitable for neutral solutions and use as the internal silver wire of a reference electrode.
- Electroplated and adhesive-bonded versions use different manufacturing processes while offering similar basic functions.
- The adhesive-bonded AgCl layer has a stronger bond and generally provides better durability than a standard electroplated layer.
- Multiple sizes support reference electrode bodies with different dimensions.
- Can be combined with salt bridges and PTFE caps for convenient laboratory assembly.
How to Use
- Select a silver wire with a suitable diameter and length for the reference electrode structure.
- Before installation, confirm that the wire surface is clean and free from visible oil or mechanical damage.
- Fix the wire inside the electrode body or PTFE cap and make sure the connection is secure.
- Prepare or fill a suitable internal electrolyte and remove air bubbles from the electrode.
- Immerse the electrode in the test solution and ensure sufficient contact at the liquid junction.
- When using a salt bridge, keep the salt-bridge solution level higher than the test solution level.
Maintenance and Precautions
- Rinse the silver wire with deionized water before use to remove dust and residue.
- If oil is present, clean with a suitable solvent first and then rinse with deionized water.
- Avoid forceful bending, scraping, or repeated rubbing of the AgCl layer.
- Prevent air bubbles from forming in the internal solution, as they can affect the measurement circuit.
- For long-term storage, use wet storage or sealed, light-protected storage according to the internal electrolyte conditions.
- Follow laboratory chemical safety procedures when handling salt-bridge solutions.
Frequently Asked Questions
What is the difference between electroplated and adhesive-bonded versions?
They use different manufacturing processes and have similar basic functions. The adhesive-bonded AgCl layer is more firmly attached to the silver wire and generally offers better durability.
Which solutions are suitable for the AgCl wire?
The product is mainly intended for neutral solutions. For strongly acidic, strongly alkaline, or reactive systems, a salt bridge is recommended for additional protection.
How should the wire length be selected?
Select the length according to the electrode body, effective immersion depth, and installation method so that the AgCl section is positioned correctly.
Can the wire be installed by the user?
Users with electrode assembly experience can install it themselves. Ensure a secure connection and reliable insulation, and avoid damaging the AgCl surface.
