Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/20023
Share/Export:
logo share SHARE logo core CORE BASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Title

Development of microelectrode arrays modified with inorganic–organic composite materials for dopamine electroanalysis

AuthorsLupu, Stelian; Campo García, Francisco Javier del ; Muñoz Pascual, Francisco Javier
KeywordsMicroelectrodos
Electroquímica
PEDOT
Prussian Blue
Microelectrode arrays
Electrochemistry
Issue Date13-Jan-2010
AbstractNew electrode materials based on composite inorganic redox material–organic conducting polymer for electroanalysis of dopamine were developed. The composite inorganic–organic coatings based on Prussian blue (PB) and poly(3,4-ethylenedioxythiophene) (PEDOT) have been prepared by electrochemical methods onto gold disk microelectrode arrays. Both insoluble and soluble forms of PB were prepared in situ inside the organic matrix and their electrochemical behaviour was investigated in electrolyte solution. The composite inorganic–organic coating containing the soluble PB form exhibited good electrocatalytic activity towards dopamine (DA) oxidation in aqueous buffered solutions. The DA concentration was determined by cyclic voltammetry in the presence of a high excess of ascorbic acid (AA). A linear response for DA concentrations ranging from 10 uM to 50 uM, in the presence of 1 mM AA, with a sensitivity of 460 uA/uM and a detection limit of 4.3 uM, have been obtained.
URIhttp://hdl.handle.net/10261/20023
DOI10.1016/j.jelechem.2009.12.003
Appears in Collections:(IMB-CNM) Artículos




Files in This Item:
File Description SizeFormat
JEAC_2009.pdf310,02 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work

SCOPUSTM   
Citations

32
checked on Jul 1, 2022

WEB OF SCIENCETM
Citations

34
checked on Jun 27, 2022

Page view(s)

327
checked on Jul 3, 2022

Download(s)

225
checked on Jul 3, 2022

Google ScholarTM

Check

Altmetric

Dimensions


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.