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Modifying Glassy Carbon (GC) Electrodes to Confer Selectivity for the Voltammetric Detection of L ‐Cysteine in the Presence of dl ‐Homocysteine and Glutathione
Author(s) -
Okumura Leonardo Luiz,
Stradiotto Nelson R.,
Rees Neil V.,
Compton Richard G.
Publication year - 2008
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.200704151
Subject(s) - cysteine , homocysteine , glassy carbon , glutathione , chemistry , perchloric acid , cyclic voltammetry , electrode , selectivity , voltammetry , electrochemistry , combinatorial chemistry , inorganic chemistry , biochemistry , enzyme , catalysis
In this communication we report a proof of concept study of the use of cyclic voltammetry with a polyeugenol‐modified glassy carbon (GC) electrode to selectively detect L ‐cysteine in the presence of both dl ‐homocysteine and glutathione in perchloric acid. The formation of a polyeugenol‐modified gold electrode is also reported for the first time.