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

• Type: Article in International Scientific Journal
• Date: 2013

Authors

Jose A Ribeiro (Author) Other; Silva, F (Author) FCUP; Carlos M Pereira (Author) FCUP

Journal

Title: Electroanalysis

Vol. 25

Pages: 2331-2338

ISSN: 1040-0397

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 7 Citations

Scopus - 8 Citations

Scientific classification

FOS: Natural sciences > Chemical sciences

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8