A study of coated-wire potassium-valinomycin and sodium-monensin ion-sensing systems by use of a conventional field-effect transistor.

M Thompson, UJ Krull, PJ Worsfold

Research output: Contribution to journalArticlepeer-review

Abstract

Polymer films containing a sodium or potassium ion-selective exchanger were coated onto platinum wire and incorporated into a potentiometric arrangement. Comparative results obtained by utilizing different measuring devices, one a conventional pH-meter and the other a field-effect transistor (FET) in series with an electrometer, are discussed. The linear range of either system is comparable with that of other electrochemical techniques. Possible applications of such a device are described.
Original languageEnglish
Pages (from-to)1015-1018
Number of pages0
JournalTalanta
Volume26
Issue number11
Publication statusPublished - Nov 1979

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