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Reference type: Journal
Authors: Blanco-López MC, Fernández-Llano L, Lobo-Castañón MJ, Miranda-Ordieres AJ, Tuñón-Blanco P
Article Title: Voltammetry of diclofenac at graphite, carbon composites, and molecularly imprinted polymer-composite electrodes.
Publication date: 2004
Journal: Analytical Letters
Volume: 37
Issue: (5)
Page numbers: 915-927.
DOI: 10.1081/AL-120030287
Alternative URL: http://www.informaworld.com/10.1081/AL-120030287

Abstract: The electrochemical behavior of diclofenac (DCF) at graphite electrodes was investigated. The drug is irreversibly oxidized at 0.84V (pH 1), giving rise to some products, which exhibit two reversible process with formal potential of 0.39 and 0.63 V. Carbon composite electrodes of different nature [polytetrafluoroethylene-graphite (PTFE-G), epoxy- graphite (EG), epoxy-carbon black (E-CB)] were also investigated for voltammetric detection of DCF. A similar electrochemical behavior was observed on these electrodes although graphite was preferred over carbon black as conducting phase, and both PTFE and epoxy could act as C agglomerant. Electrodes constructed with these materials could be modified with molecularly imprinted polymers (MIPs'), and allowed detection of DCF after incubation in an acetonitrile solution of the drug
Template and target information: diclofenac, DCF


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