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http://hdl.handle.net/2445/139423
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DC Field | Value | Language |
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dc.contributor.author | Rojas-Romo, Carlos | - |
dc.contributor.author | Serrano i Plana, Núria | - |
dc.contributor.author | Ariño Blasco, Cristina | - |
dc.contributor.author | Arancibia, Verónica | - |
dc.contributor.author | Díaz Cruz, José Manuel | - |
dc.contributor.author | Esteban i Cortada, Miquel | - |
dc.date.accessioned | 2019-09-06T07:42:46Z | - |
dc.date.available | 2019-09-06T07:42:46Z | - |
dc.date.issued | 2016-04-06 | - |
dc.identifier.issn | 0039-9140 | - |
dc.identifier.uri | http://hdl.handle.net/2445/139423 | - |
dc.description.abstract | The determination of Sb(III) on an ex-situ bismuth screen-printed carbon electrode (ex-situ BiSPCE) by means of adsorptive stripping voltammetry (AdSV) using quercetin-5′-sulfonic acid as chelating agent was optimized. The effect of different experimental parameters such pH, ligand concentration (CQSA), accumulation potential (Eacc) and accumulation time (tacc) were studied to obtain a wide linear range, the highest sensitivity and the lowest detection limit. Ex-situ BiSPCE was analytically compared with a sputtered bismuth screen-printed electrode (BispSPE) under optimal conditions. The obtained analytical parameters suggest that ex-situ BiSPCE behaves much better than BispSPE and the first was selected for this study. Optimal parameters were pH=4.6; CQSA=10.0 to 20.0×10−6 mol L−1; Eacc=−0.5 V and tacc=60 s. Peak area is proportional to Sb(III) concentration up to 100.0 μg L−1 (tacc 60 s) and 45.0 μg L−1 (tacc 120 s) range, with detection limits of 1.2 μg L−1 (tacc 60 s) and 0.8 μg L−1 (tacc 120 s). The relative standard deviation for a Sb(III) solution (20.0 μg L−1) was 3.9% for ten successive assays. Thus, the effect of various interfering metal ions was studied and the methodology was validated using a spiked groundwater reference material with very satisfactory results. | - |
dc.format.extent | 7 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Elsevier B.V. | - |
dc.relation.isformatof | Versió postprint del document publicat a: https://doi.org/10.1016/j.talanta.2016.04.015 | - |
dc.relation.ispartof | Talanta, 2016, vol. 155, p. 21-27 | - |
dc.relation.uri | https://doi.org/10.1016/j.talanta.2016.04.015 | - |
dc.rights | cc-by-nc-nd (c) Elsevier B.V., 2016 | - |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es | - |
dc.source | Articles publicats en revistes (Enginyeria Química i Química Analítica) | - |
dc.subject.classification | Voltametria | - |
dc.subject.classification | Electroquímica | - |
dc.subject.classification | Anàlisi electroquímica | - |
dc.subject.other | Voltammetry | - |
dc.subject.other | Electrochemistry | - |
dc.subject.other | Electrochemical analysis | - |
dc.title | Determination of Sb(III) using an ex-situ bismuth screen-printed carbon electrode by adsorptive stripping voltammetry | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/acceptedVersion | - |
dc.identifier.idgrec | 659764 | - |
dc.date.updated | 2019-09-06T07:42:47Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Enginyeria Química i Química Analítica) |
Files in This Item:
File | Description | Size | Format | |
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659764.pdf | 1.87 MB | Adobe PDF | View/Open |
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