Simultaneous Voltammetric Determination of Heavy Metals by Use of Crown Ether-modified Electrodes and Chemometrics

Andreu González-Calabuig; David Guerrero; Núria Serrano Plana; Manel del Valle

doi:10.1002/elan.201500512

Simultaneous Voltammetric Determination of Heavy Metals by Use of Crown Ether-modified Electrodes and Chemometrics

Andreu González-Calabuig, David Guerrero, Núria Serrano Plana, Manel del Valle^*

^*Corresponding author for this work

Universitat de Barcelona (UB)

Research output: Contribution to journal › Article › Research › peer-review

35 Citations (Scopus)

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.

Original language	English
Pages (from-to)	663-670
Number of pages	8
Journal	Electroanalysis
Volume	28
Issue number	4
DOIs	https://doi.org/10.1002/elan.201500512 https://doi.org/10.1002/elan.201500512
Publication status	Published - 1 Apr 2016

Keywords

Artificial neural network
Crown ether-modified sensors
Electrochemical grafting
Heavy metal
Stripping voltammetry

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title = "Simultaneous Voltammetric Determination of Heavy Metals by Use of Crown Ether-modified Electrodes and Chemometrics",

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.",

keywords = "Artificial neural network, Crown ether-modified sensors, Electrochemical grafting, Heavy metal, Stripping voltammetry",

author = "Andreu Gonz{\'a}lez-Calabuig and David Guerrero and {Serrano Plana}, N{\'u}ria and {del Valle}, Manel",

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AU - González-Calabuig, Andreu

AU - Guerrero, David

AU - Serrano Plana, Núria

AU - del Valle, Manel

PY - 2016/4/1

Y1 - 2016/4/1

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AB - 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.

KW - Artificial neural network

KW - Crown ether-modified sensors

KW - Electrochemical grafting

KW - Heavy metal

KW - Stripping voltammetry

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JO - Electroanalysis

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IS - 4

ER -

Simultaneous Voltammetric Determination of Heavy Metals by Use of Crown Ether-modified Electrodes and Chemometrics

Abstract

Keywords

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