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Electrooxidation of methadone on carbon paste electrodes

✍ Scribed by J.R. Barreira Rodriguez; A. Costa Garcia; P. Tuñon Blanco

Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
369 KB
Volume
34
Category
Article
ISSN
0013-4686

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✦ Synopsis

The oxidation of methadone on carbon paste electrodes has been studied using voltammetric techniques under semi-infinite linear diffision and hydrodynamic conditions. A simple "in situ" electrode pretreatment is proposed to obtain a good reproducibility of the current signal. The diffusion coeflkient (0.19 x 10-s cm* s-l), the charge transfer coefficient @=0.30) and the charge transfer rate constant (K = 1.2 x 10-l' ems-') are reported. A mechanism involving two electrons and twd protons is proposed for methadone oxidation, which is in agreement with reported data concerning other aliphatic amines.

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