Use of ruthenium–(ethylenedinitrito)-tetraacetic acid monohydrate ion immobilized on zirconium(IV) oxide coated silica gel surface as an amperometric sensor for oxygen in water
- 1 January 1995
- journal article
- Published by Royal Society of Chemistry (RSC) in Analytical Proceedings including Analytical Communications
- Vol. 32 (12) , 503-505
- https://doi.org/10.1039/ai9953200503
Abstract
[Ru(edta)H2O]– adsorbed on zirconium(IV) oxide coated on the surface of silica gel was used for the construction of an amperometric sensor for O2 in water, using a carbon paste electrode. The adsorbed complex electrocatalyses the oxygen reduction reaction at –250 mV versus SCE. The cathodic current was linear for an oxygen concentration between 0.55 and 8.0 ppm, with a correlation coefficient of 0.998 and a relative standard deviation of 2.7%. The sensor response is constant within the solution pH values 2.0 and 6.5. The concentration of O2 in a natural sample was also determined.Keywords
This publication has 11 references indexed in Scilit:
- Electrochemical Properties of Iron Phthalocyanine Immobilized on Titanium(IV) Oxide Coated on Silica Gel SurfaceLangmuir, 1995
- Determination of dissolved oxygen by catalytic reduction on a Nafion® / ruthenium-oxide pyrochlore chemically modified electrodeJournal of Electroanalytical Chemistry, 1994
- Structure and electrochemical property of the cobalt(II) hexacyanoferrate complex immobilized on Sn(IV) oxide coated on silica gel surfaceElectrochimica Acta, 1994
- Cyclic voltammetry studies of copper and nickel hexacyanoferrate immobilized on a silica gel surface coated with titanium(IV) oxideJournal of Electroanalytical Chemistry, 1993
- Cyclic Voltammetry Study of Hexacyanoferrate Complex Immobilized on Silica Gel Surface Chemically Modified With Pyridinium IonJournal of the Brazilian Chemical Society, 1993
- Reversible potentiometric oxygen sensors based on polymeric and metallic film electrodesAnalytical Chemistry, 1992
- Determination of dissolved oxygen by catalytic reduction on Nafion—methyl viologen chemically modified electrodeTalanta, 1992
- Catalysis of dioxygen reduction at glassy carbon and carbon fibre electrodes coated with poly-cobalt(O-aminophenyl)porphyrin filmElectrochimica Acta, 1988
- Electrocatalytic reduction of oxygen by poly(viologen)-poly (sulfonate) complex coated on graphite electrodesThe Journal of Physical Chemistry, 1983
- The Reduction of [Ru(Hedta)(H2O)] at the Mercury Electrode and Subsequent ReactionsBulletin of the Chemical Society of Japan, 1974