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A tungsten oxide coated wire electrode used as a pH sensor in flow injection potentiometry
journal contribution
posted on 2023-05-16, 11:20 authored by Dimitrakopoulos, LT, Dimitrakopoulos, T, Alexander, PW, Losic, D, Hibbert, DBIn this study, a tungsten oxide wire electrode is described for use as a pH electrode in a portable battery-powered flow injection analyser described previously.1 The tungsten oxide electrode exhibits a linear response of 44.8 ± 0.5 mV change per pH unit over a wide range, pH 2-11 in the steady-state mode. In the flow injection mode, the tungsten oxide wire electrode exhibited a slope of 42.4 ± 0.9 mV per pH unit. The tungsten oxide electrode was employed to determine the pH of various alcoholic beverages and environmental water samples.
History
Publication title
Analytical CommunicationsVolume
35Issue
12Pagination
395-398ISSN
1359-7337Department/School
University CollegePublisher
Royal Society of ChemistryPlace of publication
United KingdomRepository Status
- Restricted