Voltammetric Study of Aminopurines on Pencil Graphite Electrode in the Presence of Copper Ions

Abstrakt

Electrochemical oxidations of aminopurines (adenine. 2-aminopurine. 2,6-diaminopurine) and their complexes with Cu(I) on a pencil graphite electrode were investigated by means of linear sweep voltammetry (LSV) and elimination voltammetry with linear scan (EVLS) The anodic process of the Cu(1)-aminopurine complex, corresponding to the oxidation of Cu(l) to Cu(11). takes place in the potential lane between 04 and 0 5 V (vs Ag/AgCl/3 M KCl) At more positive potentials the aminopurines provide voltammetric peaks resulting from the oxidation of the purine ring The stability of the accumulated complex layei was investigated by the adsorptive transfer stripping technique