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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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