TY - JOUR
T1 - Simultaneous Voltammetric Determination of Heavy Metals by Use of Crown Ether-modified Electrodes and Chemometrics
AU - González-Calabuig, Andreu
AU - Guerrero, David
AU - Serrano Plana, Núria
AU - del Valle, Manel
N1 - Publisher Copyright:
© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
PY - 2016/4/1
Y1 - 2016/4/1
N2 - 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.
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
UR - http://www.scopus.com/inward/record.url?scp=84952005049&partnerID=8YFLogxK
U2 - 10.1002/elan.201500512
DO - 10.1002/elan.201500512
M3 - Article
SN - 1040-0397
VL - 28
SP - 663
EP - 670
JO - Electroanalysis
JF - Electroanalysis
IS - 4
ER -