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Title: Simultaneous voltammetric determination of heavy metals by use of crown ether-modified electrodes and chemometrics
Author: González-Calabuig, Andreu
Guerrero, David
Serrano i Plana, Núria
Valle, Manel del
Keywords: Voltametria
Metalls pesants
Xarxes neuronals (Informàtica)
Anàlisi electroquímica
Heavy metals
Neural networks (Computer science)
Electrochemical analysis
Issue Date: 12-Oct-2016
Publisher: Wiley-VCH
Abstract: A three‐sensor array consisting of a graphite‐epoxy composite electrode (GEC), 4‐carboxybenzo‐18‐crown‐6‐GEC and 4‐carboxybenzo‐15‐crown‐5‐GEC was employed for the simultaneous determination of Cd(II), Pb(II) and Hg(II) by differential pulse anodic stripping voltammetry (DPASV). Sensors were firstly studied for the determination of Hg(II); secondly, peak current responses confirmed that all sensors showed differentiated response for the three considered metals. A response model was developed to resolve mixtures of Cd(II), Pb(II) and Hg(II) at the µg L−1 level; Discrete Wavelet Transform was selected as preprocessing tool and artificial neural network used for the modelling of the obtained responses.
Note: Versió postprint del document publicat a:
It is part of: Electroanalysis, 2016, vol. 28, p. 663-670
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ISSN: 1040-0397
Appears in Collections:Articles publicats en revistes (Enginyeria Química i Química Analítica)

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