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Reference Electrodes with Polymer-Based Membranes-Comprehensive Performance Characteristics.

Peter Lingenfelter¹, Bartosz Bartoszewicz², Jan Migdalski²

¹Center for Process Analytical Chemistry and Sensor Technology (ProSens), Åbo Akademi University, Piispankatu 8, FI-20500 Turku, Finland.

|December 5, 2019

Summary

This summary is machine-generated.

This study fabricated and tested various reference electrodes using different plastic matrices. Standardized protocols revealed unique performance characteristics and previously unhighlighted weaknesses for each electrode type.

Keywords:

heterogenous membranes polymer membranes potentiometry reference electrode solid contact

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Area of Science:

Electrochemistry
Materials Science

Background:

Reference electrodes are crucial for electrochemical measurements.
Lack of standardized testing hinders comparison of different reference electrode types.

Purpose of the Study:

To fabricate and evaluate reference electrodes using various plastic matrices.
To develop and apply standardized testing protocols for potentiometric performance.

Main Methods:

Fabrication of liquid and solid-state reference electrodes with different plastic matrices (PVC, PU, UF, PVA).
Dispersion of inorganic (KCl) and organic (QB) salts within the matrices.
Development of standardized protocols to assess stability, pH sensitivity, ionic strength, and ionic species response.

Main Results:

All fabricated reference electrodes showed suitability for specific applications.
Different plastic matrices significantly impacted reference membrane behavior.
Previously unhighlighted weaknesses were identified for most electrode types due to inconsistent testing.

Conclusions:

Standardized testing is essential for accurate comparison of reference electrode performance.
Matrix selection critically influences reference electrode properties.
Further research is needed to optimize reference electrode design for specific applications.