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dc.contributor.authorRolisola, Ana M. C. M. [UNESP]
dc.contributor.authorSuarez, Carlos A. [UNESP]
dc.contributor.authorMenegario, Amauri A. [UNESP]
dc.contributor.authorGastmans, Didier [UNESP]
dc.contributor.authorKiang, Chang H. [UNESP]
dc.contributor.authorColaco, Camila D. [UNESP]
dc.contributor.authorGarcez, Daniel L. [UNESP]
dc.contributor.authorSantelli, Ricardo E.
dc.date.accessioned2015-03-18T15:54:16Z
dc.date.available2015-03-18T15:54:16Z
dc.date.issued2014-09-07
dc.identifierhttp://dx.doi.org/10.1039/c4an00555d
dc.identifier.citationAnalyst. Cambridge: Royal Soc Chemistry, v. 139, n. 17, p. 4373-4380, 2014.
dc.identifier.issn0003-2654
dc.identifier.urihttp://hdl.handle.net/11449/116853
dc.description.abstractIn this study, a method is proposed for the selective retention of As(v) using diffusive gradient in thin film (DGT) samplers containing a strongly basic anion exchange resin (Amberlite IRA 910) supported on a polyacrylamide gel. In addition, the total arsenic content is determined by ferrihydrite gel discs. Subsequently, the concentration of As(III) was obtained by determining the difference between the total As and As(V). DGT experiments showed linear accumulation of As(V) (up to 280 ng) until a deployment time of 8 h deployment (R-2 > 0.99). The retention of As(V) was appropriate (97.9-112.3%) between pH 5 and 9. For a solution with an ionic strength ranging from 0.001 to 0.05 mol L-1, the As(V) uptake ranged from 90-120%. The proposed method was applied for the speciation of arsenic in river water. For the analysis of spiked samples collected at the Furnas stream, the recoveries of total arsenic content ranged between 103.9% and 118.8%. However, the recoveries of As(III) and As(V) were 43.3-75.2% and 147.3-153.4%, respectively. These differences were probably because of the oxidation of As(III) to As(V) during deployments. For spiked samples collected at the Ribeirao Claro, the recoveries of dissolved As(III), As(V) and As(T) were 103.1%, 108.0% and 106.3%, respectively. Thus, the DGT technique with Amberlite IRA 910 resin as the binding phase can be employed for the in situ redox speciation of inorganic arsenic.en
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.format.extent4373-4380
dc.language.isoeng
dc.publisherRoyal Soc Chemistry
dc.relation.ispartofAnalyst
dc.sourceWeb of Science
dc.titleSpeciation analysis of inorganic arsenic in river water by Amberlite IRA 910 resin immobilized in a polyacrylamide gel as a selective binding agent for As(v) in diffusive gradient thin film techniqueen
dc.typeArtigo
dcterms.rightsHolderRoyal Soc Chemistry
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidade Federal do Rio de Janeiro (UFRJ)
dc.description.affiliationUNESP Univ Estadual Pau lista, Inst Geociencias & Ciencias Exatas, Programa Posgrad Geociencias & Meio Ambiente, BR-13506900 Rio Claro, SP, Brazil
dc.description.affiliationUNESP Univ Estadual Pau lista, Ctr Estudos Ambientais, BR-13506900 Rio Claro, SP, Brazil
dc.description.affiliationUNESP Univ Estadual Pau lista, Inst Geociencias & Ciencias Exatas, LEBAC, BR-13506900 Rio Claro, SP, Brazil
dc.description.affiliationUniv Fed Rio de Janeiro, Dept Quim Analit, BR-21941909 Rio De Janeiro, RJ, Brazil
dc.description.affiliationUnespUNESP Univ Estadual Pau lista, Inst Geociencias & Ciencias Exatas, Programa Posgrad Geociencias & Meio Ambiente, BR-13506900 Rio Claro, SP, Brazil
dc.description.affiliationUnespUNESP Univ Estadual Pau lista, Ctr Estudos Ambientais, BR-13506900 Rio Claro, SP, Brazil
dc.description.affiliationUnespUNESP Univ Estadual Pau lista, Inst Geociencias & Ciencias Exatas, LEBAC, BR-13506900 Rio Claro, SP, Brazil
dc.identifier.doi10.1039/c4an00555d
dc.identifier.wosWOS:000340703100033
dc.rights.accessRightsAcesso restrito
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Geociências e Ciências Exatas, Rio Claropt
dc.identifier.lattes1989662459244838
unesp.author.lattes1989662459244838
dc.relation.ispartofjcr3.864
dc.relation.ispartofsjr1,249
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