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Issue 6, 2003
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Design and performance of some microflow-cell potentiometric transducers

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Abstract

The paper presents and compares the design of three potentiometric transducers: ion-selective field effect transistor (ISFET), solid-state Ag/AgCl electrode and miniaturized classical Ag/AgCl electrode. The reported transducers were fabricated using different, less or more complicated and expensive, technologies. The transducers were constructed to be compatible with the sensor housing of the flow-cell, designed previously. Moreover, the back-side contact structures of the two planar devices, where electrical connectors and the sensing layer are on the opposite sides, facilitated their application in the flow analysis. Exemplary potassium-selective microsensors based on developed transducers were prepared, applying plasticized PVC and polysiloxane membranes containing valinomycine. The determined microsensor performances allowed comparison of their usefulness for multiparameter flow analysis.

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Publication details

The article was received on 03 Jan 2003, accepted on 26 Feb 2003 and first published on 26 Mar 2003


Article type: Paper
DOI: 10.1039/B300069A
Analyst, 2003,128, 532-536

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    Design and performance of some microflow-cell potentiometric transducers

    J. Zachara and W. Wróblewski, Analyst, 2003, 128, 532
    DOI: 10.1039/B300069A

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