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Planar thick-film pH electrodes based on ruthenium dioxide hydrate

Planar thick-film pH electrodes based on ruthenium dioxide hydrate
Planar thick-film pH electrodes based on ruthenium dioxide hydrate
A planar thick film electrode for the potentiometric measurement of pH is introduced. The screen printed active layer is based on ruthenium dioxide hydrate held in a polymer matrix. The electrode has near-Nernstian (?59.15 mV/pH) behaviour in the pH range 2–10. As the electrode was aged over 60 days, the pH response was seen to be dependent on the conditions of storage. This behaviour is compared with that predicted by theoretical mechanisms for metal oxide pH response.
ruthenium dioxide, planar thick film electrode, oxidation
0925-4005
505-511
Mihell, J.A.
5563cec9-b578-4527-b74a-ef4e46bccd81
Atkinson, J.K.
9a8f76fc-d56b-4644-9ba0-89984baf6087
Mihell, J.A.
5563cec9-b578-4527-b74a-ef4e46bccd81
Atkinson, J.K.
9a8f76fc-d56b-4644-9ba0-89984baf6087

Mihell, J.A. and Atkinson, J.K. (1998) Planar thick-film pH electrodes based on ruthenium dioxide hydrate. Sensors and Actuators B: Chemical, 48 (1-3), 505-511. (doi:10.1016/S0925-4005(98)00090-2).

Record type: Article

Abstract

A planar thick film electrode for the potentiometric measurement of pH is introduced. The screen printed active layer is based on ruthenium dioxide hydrate held in a polymer matrix. The electrode has near-Nernstian (?59.15 mV/pH) behaviour in the pH range 2–10. As the electrode was aged over 60 days, the pH response was seen to be dependent on the conditions of storage. This behaviour is compared with that predicted by theoretical mechanisms for metal oxide pH response.

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Published date: 1998
Keywords: ruthenium dioxide, planar thick film electrode, oxidation

Identifiers

Local EPrints ID: 21137
URI: http://eprints.soton.ac.uk/id/eprint/21137
ISSN: 0925-4005
PURE UUID: b74242fa-44c2-460f-a2aa-4c2c43a0cccb

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Date deposited: 06 Nov 2006
Last modified: 15 Jul 2019 19:24

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Contributors

Author: J.A. Mihell
Author: J.K. Atkinson

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