Determination of 6-mercaptopurine in the presence of uric acid using modified multiwall carbon nanotubes-TiO

Authors: Adam Cawley, Ali A Ensafi, H Karimi-Maleh

Publication date: 2012/12/1

Journal name: Drug Testing and Analysis

Volume: 4

Pages: 970-977

Publisher: Wiley-Blackwell

Abstract:< p xml: id=" dta286-para-0001"> In this work, a multiwall carbon nanotubes
modified electrode (prepared by incorporating TiO 2 nanoparticles with p-aminophenol as a
mediator) was used as voltammetric sensor for the determination of 6-mercaptopurine (6-
MP) in the presence of uric acid (UA). The voltammograms of 6-MP and UA in a mixture can
be separated from each other by differential pulse voltammetry with a potential difference of
380 mV at a scan rate of 10 mV s− 1. These conditions are sufficient to allow for the ...