Silver/Silver Chloride Reference Electrode PEEK ATOMFAIR®

This document specifies the system compatibility constraints for the Atomfair AF-AG-PEK silver/silver chloride reference electrode with PEEK shaft. The electrode is intended for neutral electrochemical systems and requires a salt bridge for strongly acidic or alkaline media.

• Electrolyte System Constraint: The internal saturated potassium chloride electrolyte limits routine use to neutral systems.
• Salt Bridge Requirement: Use a compatible salt bridge when the electrode is applied to strongly acidic or alkaline systems.
• Reference Chemistry Selection: Select the reference chemistry according to the neutral, acidic, alkaline, or organic solution system before use.

This procedure covers system selection and salt-bridge integration for the Atomfair AF-AG-PEK silver/silver chloride reference electrode. Follow these steps to keep the internal saturated potassium chloride electrolyte isolated from incompatible media.

Required Equipment: Compatible salt bridge

1. Confirm the electrode configuration
   Confirm the reference electrode family, configuration, compatible electrolyte, and required quantity before requesting quotation support.
2. Select the reference chemistry
   Select the reference chemistry according to the neutral, acidic, alkaline, or organic solution system.
3. Integrate a salt bridge for non-neutral media
   Use a compatible salt bridge when applying the electrode to strongly acidic or alkaline systems.

This silver/silver chloride reference electrode with PEEK shaft is specifically designed for neutral electrochemical systems, employing a saturated potassium chloride internal electrolyte and a polymer-shaft construction that offers chemical resistance in non-extreme pH environments.

Positive

• PEEK shaft for neutral systems: The PEEK (polyether ether ketone) shaft provides excellent chemical resistance and mechanical stability for use in neutral electrolyte systems, making it suitable for long-term deployment in standard laboratory electrochemical cells.
• Saturated KCl internal electrolyte: The internal saturated potassium chloride electrolyte ensures a stable and reproducible reference potential in neutral aqueous solutions, a standard configuration for reliable potentiometric measurements.

Trade-offs

• Acidic or alkaline limitation: This electrode is recommended only for neutral systems; for strongly acidic or alkaline solutions, a compatible salt bridge is required to prevent degradation or potential drift, adding complexity to the measurement setup.

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