Voltammetric measurement of trace amount of glutathione using multiwall carbon nanotubes as a sensor and chlorpromazine as a mediator

Authors: Ali A Ensafi, M Taei, T Khayamian, H Karimi-Maleh, F Hasanpour

Publication date: 2010/8/1

Journal name: Journal of Solid State Electrochemistry

Volume: 14

Pages: 1415-1423

Publisher: Springer-Verlag

Abstract In this work, we propose chlorpromazine as a new mediator for the rapid, sensitive,
and highly selective voltammetric determination of glutathione (GSH) using multiwall carbon
nanotubes paste electrode (MWCNTPE). The experimental results showed that the carbon
nanotubes paste electrode has a highly electrocatalytic activity for the oxidation of GSH in
the presence of chlorpromazine as a mediator. Cyclic voltammetry, double potential step
chronoamperometry, and differential pulse voltammetry (DPV) are used to investigate the ...