Por favor, use este identificador para citar o enlazar este documento: https://hdl.handle.net/2445/127716
Título: Selenocystine modified screen-printed electrode as an alternative sensor for the voltammetric determination of metal ions
Autor: Puy, Jaume
Pérez Ràfols, Clara
Serrano i Plana, Núria
Díaz Cruz, José Manuel
Ariño Blasco, Cristina
Esteban i Cortada, Miquel
Materia: Voltametria
Elèctrodes
Seleni
Voltammetry
Electrodes
Selenium
Fecha de publicación: 29-jul-2017
Publicado por: Elsevier B.V.
Resumen: A novel selenium based screen-printed electrode was developed based on the immobilization of selenocystine on aryl diazonium salt monolayers anchored to a carbon-nanofiber screen-printed electrode support (SeCyst- SPCNFE). SeCyst-SPCNFE was analytically compared to a screen-printed carbon nanofiber electrode modified with L-Cystine (Cyst-SPCNFE) for the determination of Pb(II) and Cd(II) by stripping voltammetric techniques. Their analytical performance suggests that SeCyst-SPCNFE could be a much better alternative for metal ion determination at trace levels than Cyst-SPCNFE. The proposed electrode was successfully applied for the simultaneous voltammetric determination of trace Pb(II) and Cd(II) in a wastewater reference material with a very high reproducibility (3.2%) and good trueness (2.6%).
Nota: Versió postprint del document publicat a: https://doi.org/10.1016/j.talanta.2017.07.089
Es parte de: Talanta, 2017, vol. 175, p. 501-506
URI: https://hdl.handle.net/2445/127716
Recurso relacionado: https://doi.org/10.1016/j.talanta.2017.07.089
ISSN: 0039-9140
Aparece en las colecciones:Articles publicats en revistes (Enginyeria Química i Química Analítica)

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