On-line determination of Sb(III) and total Sb using baker's yeast immobilized on polyurethane foam and hydride generation inductively coupled plasma optical emission spectrometry

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dc.contributor.authorMenegario, Amauri A.
dc.contributor.authorSilva, Ariovaldo Jose
dc.contributor.authorPozzi, Eloisa
dc.contributor.authorDurrant, Steven F.
dc.contributor.authorAbreu, Cassio H.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2014-05-20T15:21:49Z
dc.date.available2014-05-20T15:21:49Z
dc.date.issued2006-09-01
dc.description.abstractThe yeast Saccharomyces cerevisiae was immobilized in cubes of polyurethane foam and the ability of this immobilized material to separate Sb(III) and Sb(V) was investigated. A method based on sequential determination of total Sb (after on-line reduction of Sb(V) to Sb(III) with thiourea) and Sb(Ill) (after on-line solid-liquid phase extraction) by hydride generation inductively coupled plasma optical emission spectrometry is proposed. A flow system assembled with solenoid valves was used to manage all stages of the process. The effects of pH, sample loading and elution flow rates on solid-liquid phase extraction of Sb(III) were evaluated. Also, the parameters related to online pre-reduction (reaction coil and flow rates) were optimized. Detection limits of 0.8 and 0.15 mu g L-1 were obtained for total Sb and Sb (III), respectively. The proposed method was applied to the analysis of river water and effluent samples. The results obtained for the determination of total Sb were in agreement with expected values, including the river water Standard Reference Material 1640 certified by the National Institute of Standards and Technology (NIST). Recoveries of Sb(III) and Sb(V) in spiked samples were between 81 19 and I I I 15% when 120 s of sample loading were used. (c) 2006 Elsevier B.V. All rights reserved.en
dc.description.affiliationUniv Estadual Paulista, Ctr Estudos Ambientais, BR-13506900 Rio Claro, SP, Brazil
dc.description.affiliationUniv São Paulo, Escola Engn Sao Carlos, BR-13566590 Sao Carlos, SP, Brazil
dc.description.affiliationUNESP, Lab Plasmas Technol, BR-18087180 Sorocaba, SP, Brazil
dc.description.affiliationUniv São Paulo, Ctr Energia Nucl Agr, BR-13400970 Piracicaba, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Ctr Estudos Ambientais, BR-13506900 Rio Claro, SP, Brazil
dc.description.affiliationUnespUNESP, Lab Plasmas Technol, BR-18087180 Sorocaba, SP, Brazil
dc.format.extent1074-1079
dc.identifierhttp://dx.doi.org/10.1016/j.sab.2006.09.008
dc.identifier.citationSpectrochimica Acta Part B-atomic Spectroscopy. Oxford: Pergamon-Elsevier B.V., v. 61, n. 9, p. 1074-1079, 2006.
dc.identifier.doi10.1016/j.sab.2006.09.008
dc.identifier.issn0584-8547
dc.identifier.orcid0000-0002-4511-3768
dc.identifier.urihttp://hdl.handle.net/11449/32926
dc.identifier.wosWOS:000243091100010
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofSpectrochimica Acta Part B-atomic Spectroscopy
dc.relation.ispartofjcr2.854
dc.relation.ispartofsjr0,960
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectSb(III)pt
dc.subjectSb(V)pt
dc.subjectICP GESpt
dc.subjectSaccharomyces cerevisiaept
dc.subjectspeciation analysispt
dc.titleOn-line determination of Sb(III) and total Sb using baker's yeast immobilized on polyurethane foam and hydride generation inductively coupled plasma optical emission spectrometryen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.orcid0000-0002-4511-3768[4]

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Rio Claro - CEA - Centro de Estudos Ambientais