Cyclic voltammetric studies of a thionine coated pyrolytic graphite electrode |
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| Authors: | A.James McQuillan Malcolm R. Reid |
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| Affiliation: | Department of Chemistry, University of Otago, Dunedin New Zealand |
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| Abstract: | Cyclic voltammetry has been used to study the spontaneous adsorption and oxidative coating of thionine onto basal plane pyrolytic graphite electodes. Spontaneous adsorption leads to a monolayer of flat lying molecules together with some weakly attached upper layers. Oxidation of an adsorbed thionine monolayer results in several products which appear to include polymeric species and the sulphoxide of thionine. Similar products are obtained by an oxidative coating procedure. |
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| Keywords: | To whom correspondence should be addressed. |
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