Analytical quality solid-state composite reference electrode manufactured by injection moulding

A1 Journal article (refereed)

Internal Authors/Editors

Publication Details

List of Authors: Kim Granholm, Zekra Mousavi, Tomasz Sokalski, Andrzej Lewenstam
Publisher: SPRINGER
Publication year: 2014
Journal: Journal of Solid State Electrochemistry
Journal acronym: J SOLID STATE ELECTR
Volume number: 18
Issue number: 3
Start page: 607
End page: 612
Number of pages: 6
ISSN: 1432-8488
eISSN: 1433-0768


An injection moulding method was used for fabricating solid-state reference electrodes (Ag/AgCl type) based on a polymer/inorganic salt composite. In this method, a silver/silver chloride wire was placed inside a mould into which the mixture of polymer and inorganic salt was injected. The obtained solid-state composite reference electrodes were extensively tested to study the influence of different parameters such as solution composition, the concentrations and mobility of ions and pH on the potential stability of the electrodes. These experiments revealed that the composite reference electrodes are insensitive to the matrix effect, have excellent potential readings stability and considerably reduced leakage of inorganic salt. The composite reference electrodes were compared favourably to high-quality commercial reference electrodes. It was concluded that the composite reference electrodes obtained by injection moulding are of analytical quality allowing for continuous, prolonged and intensive usage.


Maintenance-free sensor, Potentiometry, Reference electrode, Solid contact

Last updated on 2019-12-12 at 04:27