Electrocatalytic Oxidation and Determination of Morin at a Poly(2,5-dimercapto-1,3,4-thiadiazole) Modified Carbon Fiber Paper Electrode

Varghese, Anitha and Chitravathi, S and Munichandraiah, N (2016) Electrocatalytic Oxidation and Determination of Morin at a Poly(2,5-dimercapto-1,3,4-thiadiazole) Modified Carbon Fiber Paper Electrode. In: JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 163 (8). B471-B477.

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Abstract

Voltammetric determination of morin on carbon fiber paper (CFP) electrode modified by electropolymerization of 2,5-dimercapto1,3,4- thiadiazole (DMTD) in phosphate buffer solution (PB, pH 9.0) have been studied. This modified electrode showed strong electrocatalytic activity toward the oxidation of morin, a flavonoid at physiological pH (PB, pH 7.0). Morin gave a sensitive anodic peak at 0.245 V (vs. SCE). The parameters influencing the anodic peak of morin such as effect of pH, effect of scan rate and concentration have been optimized. The electrochemical process was found to be irreversible and adsorption-controlled. Under the optimum conditions, the anodic peak current was linear to concentration of morin in the range of 2.5 x 10(-10)-2.75 x 10(-9) M and detection limit was found to be 8.3 x 10(-11) M. The practical application of the modified electrode was successfully demonstrated for the determination of morin in mulberry leaves. (C) 2016 The Electrochemical Society. All rights reserved.

Item Type:	Journal Article
Publication:	JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Publisher:	ELECTROCHEMICAL SOC INC
Additional Information:	Copy right for this article belongs to the ELECTROCHEMICAL SOC INC, 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited:	24 Aug 2016 09:19
Last Modified:	24 Aug 2016 09:19
URI:	http://eprints.iisc.ac.in/id/eprint/54426

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