Please use this identifier to cite or link to this item: http://hdl.handle.net/10174/3331

Title: Ultra-sensitive voltammetric sensor for trace analysis of carbamazepine
Authors: Veiga, Alfredina
Dordio, Ana
Carvalho, Alfredo
Teixeira, Dora
Ginja Teixeira, Jorge
Editors: Baldwin, R.
Keywords: Carbamazepine
Multi-walled carbon nanotubes (MWCNTs)
Voltammetric determination
Environmental samples
Pharmaceutical formulations
Issue Date: 2010
Publisher: Elsevier
Citation: A. Veiga et al. / Analytica Chimica Acta 674 (2010) 182–189
Abstract: A multi-walled carbon nanotubes (MWCNTs) film-coated glassy carbon electrode (GCE) was used for the voltammetric determination of carbamazepine (CBZ). The results showed that this simple modified electrode exhibited excellent electrocatalytic activity towards the oxidation of CBZ. The voltammetric response of CBZ at this film-modified electrode increased significantly when compared with that at a bare glassy carbon electrode and the sensor response was reproducible. The proposed method was applied to the quantification of CBZ in wastewater samples, collected in a municipal wastewater treatment plant, and in pharmaceutical formulations. The developed methodology yields results in accord with those obtained by chromatographic techniques commonly used in the quantification of pharmaceutical compounds in real samples. Good recoveries have been obtained and the limits of detection and quantification (40 and 140 nM, respectively) are among the lowest that have been reported to date for this pharmaceutical compound using voltammetric techniques.
URI: http://hdl.handle.net/10174/3331
Type: article
Appears in Collections:CQE - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica
QUI - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica
ICAAM - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica

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