Application of N-PLS calibration to the simultaneous determination of Cu2+, Cd2+ and Pb2+ using peptide modified electrochemical sensors

Download files
Access & Terms of Use
open access
Abstract
The simultaneous determination of Cu2+, Cd2+ and Pb2+ is demonstrated at four modified gold electrodes using N-PLS calibration. Three of the electrodes were modified with the peptides Gly-Gly-His, gamma-Glu-Cys Gly and human angiotensin I which were covalently attached to thioctic acid self-assembled monolayers and the fourth electrode was modified with thioctic acid only. Voltammetry at the modified electrodes in the presence of the three metal ions revealed one peak due to the reduction of copper and another due to the overlapping peaks of cadmium and lead which made quantification using conventional methods difficult. N-PLS was used to calibrate and predict trace concentrations (100 nM to 10 mM) of mixtures of Cu2+, Cd2+ and Pb2+.
Persistent link to this record
DOI
Link to Publisher Version
Additional Link
Author(s)
Chow, Edith
Ebrahimi Mohammadi, Diako
Gooding, John
Hibbert, D. Brynn
Supervisor(s)
Creator(s)
Editor(s)
Translator(s)
Curator(s)
Designer(s)
Arranger(s)
Composer(s)
Recordist(s)
Conference Proceedings Editor(s)
Other Contributor(s)
Corporate/Industry Contributor(s)
Publication Year
2006
Resource Type
Journal Article
Degree Type
UNSW Faculty
Files
download Application of N-PLS calibration for UNSWworks.pdf 157.17 KB Adobe Portable Document Format
Related dataset(s)