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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/127716
Selenocystine modified screen-printed electrode as an alternative sensor for the voltammetric determination of metal ions
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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%).
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PUY, Jaume, PÉREZ RÀFOLS, Clara, SERRANO I PLANA, Núria, DÍAZ CRUZ, José manuel, ARIÑO BLASCO, Cristina, ESTEBAN I CORTADA, Miquel. Selenocystine modified screen-printed electrode as an alternative sensor for the voltammetric determination of metal ions. _Talanta_. 2017. Vol. 175, núm. 501-506. [consulta: 13 de febrer de 2026]. ISSN: 0039-9140. [Disponible a: https://hdl.handle.net/2445/127716]