Electrochemical Investigation of Catechol at Poly(niacinamide) Modified Carbon Paste Electrode: A Voltammetric Study. (7th November 2016)

• Record Type: Journal Article
• Authors: Teradale, A. B.; Lamani, S. D.; Swamy, B. E. Kumara; Ganesh, P. S.; Das, S. N.
• Other Names: Fontanesi Claudio Academic Editor.
• Is Part Of: Advances in physical chemistry. Volume 2016(2016)
• Publication Date: 2016-11-07
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.05
• DOI: 10.1155/2016/8092860
• Languages: English
• ISSNs: 1687-7985

Abstract

Abstract : A polymeric thin film modified electrode, that is, poly(niacinamide) modified carbon paste electrode (MCPE), was developed for the electrochemical determination of catechol (CC) by using cyclic voltammetric technique. Compared to bare carbon paste electrode (BCPE), the poly(niacinamide) MCPE shows good electrocatalytic activity towards the oxidation of catechol in phosphate buffer solution (PBS) of physiological pH 7.4. All experimental parameters were optimized. Poly(niacinamide) modified carbon paste electrode gave a linear response between concentration of CC and its anodic peak current in the range within 20.6–229.0 μ M. The limit of detection (3S/M) and limit of quantification (10S/M) were 1.497 μ M and 4.99 μ M, respectively. From the study of scan rate variation, the electrode process was found to be adsorption-controlled. The involvement of protons and electrons in the oxidation of CC was found to be equal. The probable electropolymerisation mechanism of niacinamide was proposed. Finally, this method can be used in development of a sensor for sensitive determination of CC.