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Voltammetric behavior of cysteine and metallothionein on cobalt(II) tetrasulfonated phthalocyanine modified glassy carbon electrodes

✍ Scribed by Janice Limson; Tebello Nyokong

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 681 KB
Volume: 9
Category: Article
ISSN: 1040-0397
DOI: 10.1002/elan.1140090314

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✦ Synopsis

Cysteine, and rat Cd,Zn-metallothionein (Cd,Zn-MT) have been studied electrochemically at glassy carbon electrodes modified with cobalt(ii) tetrasulfonated phthalocyanine, [Co"TSPcI4-, where Pc(2.) = phthalocyanine dianion. The electrode was modified by electrodeposition of [Co"TSPcI4-. The anodic currents for the oxidation of cysteine on these electrodes are observed at 0.82 V (vs. Ag/AgCI in acidic media. The anodic currents for the oxidation of Cd,Zn-MT are observed at 0.90 V at pH 8.4 (Tris buffer).

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