Electrochemical Sensing of Catecholamines at the Water/1,6-Dichlorohexane Interface

• Tipo: Artigo em Revista Científica Internacional
• Data: 2013

Autores

Jose A Ribeiro (Autor) Outra; Silva, F (Autor) FCUP; Carlos M Pereira (Autor) FCUP

Revista

Título: Electroanalysis

Vol. 25

Páginas: 2331-2338

ISSN: 1040-0397

Editora: Wiley-Blackwell

Indexação

ISI Web of Knowledge - 7 Citações

Scopus - 8 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Química

Outras Informações

ID Authenticus: P-008-F28

DOI: 10.1002/elan.201300302

Abstract (EN): In this work, the analytical use of facilitated ion transfer of catecholamines by dibenzo-18-crown-6 was investigated at the water/1,6-dichlorohexane interface using electrochemical methods (cyclic and square wave voltammetry). The experimental conditions for the analytical determination of noradrenaline and dopamine were established and detection limits of 1.7 and 0.35¿M were obtained, respectively. The effect of excess ascorbic acid on the transfer and detection of the two catecholamines was investigated. The selectivity coefficients obtained for dopamine and noradrenaline in the presence of ascorbic acid were 3.5×10-4 and 2.5×10-3, respectively. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8