Research Article
Sodium Dodecyl Sulphate/Poly(Brilliant Blue)/Multi Walled Carbon Nanotube Modified Carbon Paste Electrode for the Voltammetric Resolution of Dopamine in the Presence of Ascorbic Acid and Uric Acid
Ganesh PS and Kumara Swamy BE*
Department of PG Studies and Research in Industrial Chemistry, Kuvempu University, Jnana Sahyadri, Shankaraghatta, Shimoga, Karnataka, India
- *Corresponding Author:
- Kumara Swamy BE
Department of PG Studies and Research in Industrial Chemistry
Kuvempu University, Jnana Sahyadri, Shankaraghatta-577 451
Shimoga, Karnataka, India
Tel: +91 82822562251
Fax: +91 8282 256255
E-mail: kumaraswamy21@yahoo.com
Received date: September 03, 2015; Accepted date: October 13, 2015; Published date: October 20, 2015
Citation: Ganesh PS, Kumara Swamy BE (2015) Sodium Dodecyl Sulphate/ Poly(Brilliant Blue)/Multi Walled Carbon Nanotube Modified Carbon Paste Electrode for the Voltammetric Resolution of Dopamine in the Presence of Ascorbic Acid and Uric Acid. J Anal Bioanal Tech 6:285. doi:10.4172/2155-9872.1000285
Copyright: © 2015 Ganesh PS , et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
Sodium dodecyl sulphate/poly(brilliant blue)/multi walled carbon nanotube modified carbon paste electrode was fabricated for the electroanalysis of dopamine in the presence of ascorbic acid and uric acid in phosphate buffer solution of pH 7.4. The key parameters such as sensitivity, selectivity, antifouling property and stability were achievedby the modified electrode. The redox peaks obtained at modified electrode shows good electrocatalytic activity towards the oxidation of dopamine. From the effect of scan rateand concentration the electrode phenomenon was confirmed to be adsorption-controlled process. The lower limit of detection of dopamine was 2.69 × 10-7M, and the simultaneous analysis shows a good result with peak to peak separation between dopamine and other two analytes ascorbic acid and uric acid by both cyclic voltammetry and differential pulse voltammetric techniques.
