visitante ::
identificación
|
|||||||||||||||
Buscar | Enviar | Ayuda | Servicio de Bibliotecas | Sobre el DDD | Català English Español |
Página principal > Artículos > Artículos publicados > Simultaneous voltammetric determination of heavy metals by use of crown ether-modified electrodes and chemometrics |
Fecha: | 2016 |
Resumen: | 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. |
Ayudas: | Ministerio de Economía y Competitividad CTQ2013-41577-P Ministerio de Economía y Competitividad CTQ2012-32863 |
Derechos: | Tots els drets reservats. |
Lengua: | Anglès |
Documento: | Article ; recerca ; Versió acceptada per publicar |
Materia: | Crown ether-modified sensors ; Electrochemical grafting ; Heavy metal ; Stripping voltammetry ; Artificial neural network |
Publicado en: | Electroanalysis, Vol. 28, Issue 4 (April 2016) p. 663-670, ISSN 1521-4109 |
Post-print 9 p, 1.2 MB |