Issue 3, 2013
From the journal:

Analytical Methods

Synthesis of ZnO and its surfactant based electrode for the simultaneous detection of dopamine and ascorbic acid

Mohan Kumar,a   B. E. Kumara Swamy,*b   Sathish Reddy,b   T. V. Sathishab  and  J. Manjannaa  

* Corresponding authors

a M.Tech in Nanoscience and Technology, Kuvempu University, Shankaraghatta-577 451, Shimoga, Karnataka, India

b Department of P.G. Studies and Research in Industrial Chemistry, Kuvempu University, Jnana Sahyadri, Shankaraghatta, Shimoga, Karnataka 577451, India
E-mail: kumaraswamy21@yahoo.com
Fax: +91-8282-256255
Tel: +91-8282-256225

Abstract

ZnO was synthesized by a mechanochemical method and characterized by powder X-ray diffraction, UV-visible absorption, scanning electron microscopy (SEM) and energy-dispersive spectroscopy (EDS). ZnO/CTAB and ZnO/TX-100 modified carbon paste electrodes were used as electrochemical sensors for dopamine. The Triton-X 100 (TX-100) modified carbon paste electrode shows electrocatalytic properties and an enhancement in the peak currents for dopamine. CTAB modified carbon paste electrodes are less sensitive for the determination of dopamine. The effect of ZnO concentration, scan rate and concentration of dopamine (DA) and ascorbic acid (AA) was varied and a simultaneous determination of DA and AA at the ZnO/TX-100 CPE was carried out.

Graphical abstract: Synthesis of ZnO and its surfactant based electrode for the simultaneous detection of dopamine and ascorbic acid

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Article information

DOI
https://doi.org/10.1039/C2AY26124C
Article type
Paper
Submitted
07 Aug 2012
Accepted
17 Nov 2012
First published
05 Dec 2012

Anal. Methods, 2013,5, 735-740

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Synthesis of ZnO and its surfactant based electrode for the simultaneous detection of dopamine and ascorbic acid

M. Kumar, B. E. K. Swamy, S. Reddy, T. V. Sathisha and J. Manjanna, Anal. Methods, 2013, 5, 735 DOI: 10.1039/C2AY26124C

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