Author:
Kumar Das Diganta,Bordoloi Priyakshi
Abstract
The graphite rods of used batteries have been utilized as source for Graphene Oxide (GO). The Acid Modified Graphene Oxide (AMGO) is loaded with Schiff base obtained from salicylaldehyde and 3-amino phenol. Glassy Carbon Electrode (GCE) surface when modified with the Schiff base loaded AMGO acts as electrochemical sensor for Dopamine (DA) in presence of Uric Acid (UA) and Ascorbic Acid (AA). Cyclic Voltammetry (CV), Square Wave Voltammetry (SWV) and Differential Pulse Voltammetry (DPV) shows well separated peaks for DA from UA and AA. The DA peak intensity increases in the three techniques with DA concentration. The linear range for the detection of dopamine is observed from 9.09 × 10-4 M to 1.70 × 10-3 M in presence of 1.00 × 10-1 M Ascorbic Acid and 1.00 × 10-2 M uric acid. The detection limit is estimated to be 9.38 × 10-10 M.
Publisher
Informatics Publishing Limited
Subject
Materials Chemistry,Electrochemistry,Surfaces, Coatings and Films,Surfaces and Interfaces
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