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http://hdl.handle.net/2445/127716| Title: | Selenocystine modified screen-printed electrode as an alternative sensor for the voltammetric determination of metal ions |
| Author: | Puy, Jaume Pérez Ràfols, Clara Serrano i Plana, Núria Díaz Cruz, José Manuel Ariño Blasco, Cristina Esteban i Cortada, Miquel |
| Keywords: | Voltametria Elèctrodes Seleni Voltammetry Electrodes Selenium |
| Issue Date: | 29-Jul-2017 |
| Publisher: | Elsevier B.V. |
| Abstract: | 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%). |
| Note: | Versió postprint del document publicat a: https://doi.org/10.1016/j.talanta.2017.07.089 |
| It is part of: | Talanta, 2017, vol. 175, p. 501-506 |
| URI: | http://hdl.handle.net/2445/127716 |
| Related resource: | https://doi.org/10.1016/j.talanta.2017.07.089 |
| ISSN: | 0039-9140 |
| Appears in Collections: | Articles publicats en revistes (Enginyeria Química i Química Analítica) |
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|---|---|---|---|---|
| 673186.pdf | 1.12 MB | Adobe PDF | View/Open |
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