Electrochemical Determination of L-Dopa in Mucuna pruriens Seeds, Leaves and Commercial Siddha Product Using Gold Modified Pencil Graphite Electrode

Kalachar, HCB and Basavanna, S and Viswanatha, R and Naik, Arthoba Y and Raj, Ananda D and Sudhad, PN (2011) Electrochemical Determination of L-Dopa in Mucuna pruriens Seeds, Leaves and Commercial Siddha Product Using Gold Modified Pencil Graphite Electrode. In: Electroanalysis, 23 (5, Sp.). pp. 1107-1115.

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Abstract

In the present work a gold modified pencil graphite electrode (GPGE) was used for the determination of L-dopa present in the aqueous extracts of Mucuna pruriens seeds (MPS), Mucuna pruriens leaves (MPL) and Commercial Siddha Product (CSP). The GPGE shows excellent electrocatalytic activity towards the oxidation of both L-dopa and ascorbic acid (AA), with the separation of peak potential of 98 mV. The differential pulse voltammetric (DPV) results indicated that the detection limit for L-dopa was 1.54 mu M (S/N=3). This method can be successfully applied for the determination of L-dopa in real samples.

Item Type:	Journal Article
Publication:	Electroanalysis
Publisher:	John Wiley & Sons
Additional Information:	Copyright of this article belongs to John Wiley & Sons.
Keywords:	Ascorbic acid;Cyclic voltammetry;Differential pulse voltammetry;L-Dopa;Mucuna pruriens
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	30 May 2011 07:28
Last Modified:	30 May 2011 07:28
URI:	http://eprints.iisc.ac.in/id/eprint/38047

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