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

Limson Janice | Zendy; Nyokong Tebello | Zendy

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

Author(s) -

Limson Janice,

Nyokong Tebello

Publication year - 1997

Publication title -

electroanalysis

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.574

H-Index - 128

eISSN - 1521-4109

pISSN - 1040-0397

DOI - 10.1002/elan.1140090314

Subject(s) - phthalocyanine , cobalt , inorganic chemistry , glassy carbon , chemistry , electrode , electrochemistry , cysteine , cyclic voltammetry , organic chemistry , enzyme

Cysteine, and rat Cd, Zn‐metallothionein (Cd, Zn‐MT) have been studied electrochemically at glassy carbon electrodes modified with cobalt (II) tetrasulfonated phthalocyanine, [Co II TSPc] 4− , where Pc(2‐) = phthalocyanine dianion. The electrode was modified by electrodeposition of [Co II TSPc] 4− . The anodic currents for the oxidation of cysteine on these electrodes are observed at 0.82 V (vs. Ag/AgCl) 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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