Electrochemical oxidation mechanism of guanine and adenine using a glassy carbon microelectrode.
The electrochemical oxidation mechanism of guanine and adenine was investigated using a glassy carbon microelectrode and cyclic and differential pulse voltammetry. It is pH-dependent and the electron transfer process occurs in consecutive steps with the formation of strongly adsorbed dimers on the electrode surface for both compounds.
Oliveira-Brett
A M
AM
Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade de Coimbra, 3004-535 Coimbra, Portugal. brett@ci.uc.pt
Diculescu
V
V
Piedade
J A P
JA
D000225:Adenine / Q000737:chemistry*; D004563:Electrochemistry / Q000295:instrumentation*; D006147:Guanine / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D008839:Microelectrodes; D010084:Oxidation-Reduction
D006147:Guanine; D000225:Adenine