Publication
Electrochemical study of butylate: application to the analysis of water
| dc.contributor.author | Barroso, M. Fátima | |
| dc.contributor.author | Ramalhosa, Maria João | |
| dc.contributor.author | Delerue-Matos, Cristina | |
| dc.contributor.author | Sales, M. Goreti F. | |
| dc.date.accessioned | 2013-11-26T10:40:07Z | |
| dc.date.available | 2013-11-26T10:40:07Z | |
| dc.date.issued | 2008 | |
| dc.description.abstract | The electroactivity of butylate (BTL) is studied by cyclic voltammetry (CV) and square wave voltammetry (SWV) at a glassy carbon electrode (GCE) and a hanging mercury drop electrode (HMDE). Britton–Robinson buffer solutions of pH 1.9–11.5 are used as supporting electrolyte. CV voltammograms using GCE show a single anodic peak regarding the oxidation of BTL at +1.7V versus AgCl/ Ag, an irreversible process controlled by diffusion. Using a HMDE, a single cathodic peak is observed, at 1.0V versus AgCl/Ag. The reduction of BTL is irreversible and controlled by adsorption. Mechanism proposals are presented for these redox transformations. Optimisation is carried out univaryingly. Linearity ranges were 0.10–0.50 mmol L-1 and 2.0–9.0 µmolL-1 for anodic and cathodic peaks, respectively. The proposed method is applied to the determination of BTL in waters. Analytical results compare well with those obtained by an HPLC method. | por |
| dc.identifier.doi | 10.1080/03067310802474905 | pt_PT |
| dc.identifier.issn | 0306–7319 | |
| dc.identifier.issn | 1029–0397 | |
| dc.identifier.uri | http://hdl.handle.net/10400.22/2953 | |
| dc.language.iso | eng | por |
| dc.peerreviewed | yes | por |
| dc.publisher | Taylor & Francis | por |
| dc.relation.ispartofseries | International Journal of Environmental Analytical Chemistry; Vol. 88, Issue 14 | |
| dc.relation.publisherversion | http://www.tandfonline.com/doi/full/10.1080/03067310802474905#.U6BGIkqUXoQ | |
| dc.subject | Butylate | por |
| dc.subject | Voltammetry | por |
| dc.subject | Glassy carbon electrode | por |
| dc.subject | Hanging mercury drop electrode | por |
| dc.title | Electrochemical study of butylate: application to the analysis of water | por |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 1062 | por |
| oaire.citation.startPage | 1049 | por |
| person.familyName | de Sá Barroso | |
| person.familyName | Ramalhosa | |
| person.familyName | Delerue-Matos | |
| person.givenName | Maria de Fátima | |
| person.givenName | Maria João | |
| person.givenName | Cristina | |
| person.identifier.ciencia-id | AF16-22E5-5EBD | |
| person.identifier.ciencia-id | 421A-C491-F45B | |
| person.identifier.ciencia-id | 9A1A-43FB-5C27 | |
| person.identifier.orcid | 0000-0001-9011-5992 | |
| person.identifier.orcid | 0000-0002-1951-3557 | |
| person.identifier.orcid | 0000-0002-3924-776X | |
| person.identifier.rid | D-8293-2013 | |
| person.identifier.rid | D-4990-2013 | |
| person.identifier.scopus-author-id | 25631648000 | |
| person.identifier.scopus-author-id | 35488836000 | |
| person.identifier.scopus-author-id | 6603741848 | |
| rcaap.rights | openAccess | por |
| rcaap.type | article | por |
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