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Electrocatalytic determination of sulfite using a modified carbon nanotubes paste electrode: application for determination of sulfite in real samples

Authors: Hassan Karimi-Maleh, Ali A Ensafi, Hadi Beitollahi, Vahid Nasiri, Mohammad A Khalilzadeh, Pourya Biparva
Publication date: 2012/7/1
Journal name: Ionics
Volume: 18
Pages: 687-694
Publisher: Springer-Verlag
 
Abstract This paper introduces a carbon paste electrode modified with ferrocene and carbon
nanotubes as a voltammetric sensor for determination of sulfite at pH 7.0. The results
showed that under the optimum condition (pH 7.0) in cyclic voltammetry, the oxidation of
sulfite occurred at a potential about 280 mV less positive than the unmodified carbon paste
electrode. Kinetic parameters such as electron transfer coefficient (α) and heterogeneous
rate constant (k) for sulfite were also determined using electrochemical approaches. ...

 

Journal Papers
Month/Season: 
July
Year: 
2012

تحت نظارت وف ایرانی

Electrocatalytic determination of sulfite using a modified carbon nanotubes paste electrode: application for determination of sulfite in real samples | Prof. Ali A. Ensafi

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تحت نظارت وف ایرانی