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Title: Ag nanoparticles drop-casting modification of screen-printed electrodes for the simultaneous voltammetric determination of Cu(II) and Pb(II)
Author: Pérez-Ràfols, Clara
Bastos-Arrieta, Julio
Serrano i Plana, Núria
Díaz Cruz, José Manuel
Ariño Blasco, Cristina
De Pablo, Joan
Esteban i Cortada, Miquel
Keywords: Nanopartícules
Ions metàl·lics
Anàlisi electroquímica
Metal ions
Electrochemical analysis
Issue Date: 21-Jun-2017
Publisher: MDPI
Abstract: A new silver nanoparticle modified screen-printed electrode was developed and applied to the simultaneous determination of Pb(II) and Cu(II). Two different types of silver nanoparticles with different shapes and sizes, Ag nanoseeds and Ag nanoprisms, were microscopically characterized and three different carbon substrates, graphite, graphene and carbon nanofibers, were tested. The best analytical performance was achieved for the combination of Ag nanoseeds with a carbon nanofiber modified screen-printed electrode. The resulting sensor allowed the simultaneous determination of Pb(II) and Cu(II) at trace levels and its applicability to natural samples was successfully tested with a groundwater certified reference material, presenting high reproducibility and trueness.
Note: Reproducció del document publicat a:
It is part of: Sensors, 2017, vol. 17, num. 6, p. 1458 -1469
Related resource:
ISSN: 1424-8220
Appears in Collections:Articles publicats en revistes (Enginyeria Química i Química Analítica)

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