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Reference type: Journal
Authors: Li JP, Zhao J, Wei XP
Article Title: A sensitive and selective sensor for dopamine determination based on a molecularly imprinted electropolymer of o-aminophenol.
Publication date: 2009
Journal: Sensors and Actuators B: Chemical
Volume: 140
Issue: (2)
Page numbers: 663-669.
DOI: 10.1016/j.snb.2009.04.067
Alternative URL: http://www.sciencedirect.com/science/article/B6THH-4W99VXD-1/2/7ebdd617da2e1a1e8fd7ffcd0898cfdf

Abstract: A simple and reliable method was proposed for preparing a selective dopamine (DA) sensor based on a molecularly imprinted electropolymer of o-aminophenol. The sensor is selective for the determination of DA in the presence of high concentrations of ascorbic acid (AA), with a maximum molar ratio of 1/1000. The molecular imprinted (MIP) sensor was tested by cyclic voltammetry (CV) as well as differential pulse voltammetry (DPV) to verify the changes in oxidative currents of ferricyanide. In optimized conditions, DA at concentrations of 2 x 10-8 to 0.25 x 10-6 mol/L could be determined with a detection limit of 1.98 x 10-9 mol/L (S/N = 3). The MIP sensor showed high selectivity, sensitivity, and reproducibility. Determination of DA in simulated samples of dopamine hydrochloride showed good recovery
Template and target information: dopamine, DA
Author keywords: molecular imprinting, dopamine, sensor, O-Aminophenol, electropolymerization


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