You are not logged in.

Characterisation of gold electrodes modified with self-assembled monolayers of l-cysteine for the adsorptive stripping analysis of copper

Yang, Wenrong, Gooding, J. Justin and Hibbert, D. Brynn 2001, Characterisation of gold electrodes modified with self-assembled monolayers of l-cysteine for the adsorptive stripping analysis of copper, Journal of electroanalytical chemistry, vol. 516, no. 1-2, pp. 10-16, doi: 10.1016/S0022-0728(01)00649-0.

Attached Files
Name Description MIMEType Size Downloads

Title Characterisation of gold electrodes modified with self-assembled monolayers of l-cysteine for the adsorptive stripping analysis of copper
Author(s) Yang, WenrongORCID iD for Yang, Wenrong orcid.org/0000-0001-8815-1951
Gooding, J. Justin
Hibbert, D. Brynn
Journal name Journal of electroanalytical chemistry
Volume number 516
Issue number 1-2
Start page 10
End page 16
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2001-12-14
ISSN 0368-1874
Keyword(s) self-assembled monolayers
I-Cysteine modified gold electrode
Cu(II) analysis
XPS
adsorptive stripping voltammetry
Summary Electrochemical sensors for copper ions in environmental samples were prepared by modifying gold electrodes with l-cysteine by self-assembly. The adsorption of l-cysteine on gold electrodes was studied by electrochemical reductive desorption in 0.5 M KOH, and the interaction of l-cysteine with copper ions was investigated by cyclic voltammetry, chronoamperometry and X-ray photoelectron spectroscopy. At low concentrations the ratio of l-cysteine to bound Cu(II) is 2:1. At higher concentrations (0.1 M) copper reacts with adsorbed cysteine forming copper sulfide on the electrode surface. On a modified l-cysteine gold electrode, Osteryoung square wave voltammetric determination of Cu(II) with a detection limit below 5 ppb has been demonstrated.
Language eng
DOI 10.1016/S0022-0728(01)00649-0
Field of Research 100703 Nanobiotechnology
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2001, Elsevier Science B.V.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30034977

Document type: Journal Article
Collection: Institute for Technology Research and Innovation
Connect to link resolver
 
Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved.

Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 193 times in TR Web of Science
Scopus Citation Count Cited 0 times in Scopus
Google Scholar Search Google Scholar
Access Statistics: 268 Abstract Views, 0 File Downloads  -  Detailed Statistics
Created: Mon, 30 May 2011, 10:55:34 EST

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.