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A tungsten oxide coated wire electrode used as a pH sensor in flow injection potentiometry


Dimitrakopoulos, LT and Dimitrakopoulos, T and Alexander, PW and Losic, D and Hibbert, DB, A tungsten oxide coated wire electrode used as a pH sensor in flow injection potentiometry, Analytical Communications, 35, (12) pp. 395-398. ISSN 1359-7337 (1998) [Refereed Article]

DOI: doi:10.1039/a807697i


In 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.

Item Details

Item Type:Refereed Article
Research Division:Chemical Sciences
Research Group:Analytical chemistry
Research Field:Instrumental methods (excl. immunological and bioassay methods)
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the chemical sciences
UTAS Author:Dimitrakopoulos, LT (Mrs Lucy Tina Dimitrakopoulos)
UTAS Author:Dimitrakopoulos, T (Mr Telis Dimitrakopoulos)
UTAS Author:Alexander, PW (Professor Peter Alexander)
UTAS Author:Losic, D (Dr Dusan Losic)
ID Code:14332
Year Published:1998
Web of Science® Times Cited:19
Deposited By:Applied Science
Deposited On:1998-08-01
Last Modified:2011-08-09

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