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dc.contributor.authorMelo, Camila A. [UNESP]
dc.contributor.authorDe Toffoli, Ana L. [UNESP]
dc.contributor.authorMoreira, Altair Benedito [UNESP]
dc.contributor.authorBisinoti, Marcia C. [UNESP]
dc.date.accessioned2014-05-20T14:03:07Z
dc.date.available2014-05-20T14:03:07Z
dc.date.issued2012-10-01
dc.identifierhttp://dx.doi.org/10.1590/S0103-50532012005000059
dc.identifier.citationJournal of The Brazilian Chemical Society. São Paulo: Soc Brasileira Quimica, v. 23, n. 10, p. 1871-1879, 2012.
dc.identifier.issn0103-5053
dc.identifier.urihttp://hdl.handle.net/11449/22244
dc.description.abstractThis study had as main objective to assess the effect of solar radiation on the capacity of the aquatic humic substances (AHS) to complex Al3+, Cr3+, CrO42- and Ni2+. Microcosms were prepared with AHS from Preto River containing 5.0 mg L-1 of dissolved organic carbon and different concentrations of metal species, being exposed to solar radiation, in situ. Conditional stability constants obtained for the AHS-Cr3+, AHS-Ni2+ and AHS-CrO42- complexes were 2.0 x 10(-2), 1.1 x 10(-5) and 2.6 x 10(-2), respectively. The results showed that solar radiation is responsible for decreasing capacity complexation in 15-26% for AHS-Al3+, 15-72% for AHS-Cr3+, 12-18% for AHS-CrO42- and 13-42% for AHS-Ni2+. We can conclude that solar radiation alters metals' availability previously complexed to AHS, making them available in the aquatic body.en
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.format.extent1871-1879
dc.language.isoeng
dc.publisherSoc Brasileira Quimica
dc.relation.ispartofJournal of the Brazilian Chemical Society
dc.sourceWeb of Science
dc.subjectAquatic humic substancesen
dc.subjectmetal complexationen
dc.subjectsolar radiationen
dc.subjectFluorescenceen
dc.titleSolar Radiation Effect on the Complexation Capacity of Aquatic Humic Substances with Metalsen
dc.typeArtigo
dcterms.rightsHolderSoc Brasileira Quimica
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.description.affiliationUniv Estadual Paulista, Dept Quim & Ciencias Ambientais, Inst Biociencias Letras & Ciencias Exatas, BR-15054000 Sao Jose do Rio Preto, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Quim & Ciencias Ambientais, Inst Biociencias Letras & Ciencias Exatas, BR-15054000 Sao Jose do Rio Preto, SP, Brazil
dc.identifier.doi10.1590/S0103-50532012005000059
dc.identifier.scieloS0103-50532012001000016
dc.identifier.wosWOS:000312199200016
dc.rights.accessRightsAcesso aberto
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Biociências Letras e Ciências Exatas, São José do Rio Pretopt
dc.identifier.fileS0103-50532012001000016.pdf
dc.identifier.lattes5323771001380189
dc.identifier.lattes3264480044529380
unesp.author.lattes5323771001380189[3]
unesp.author.lattes3264480044529380
unesp.author.orcid0000-0001-7903-2360[3]
dc.relation.ispartofjcr1.444
dc.relation.ispartofsjr0,357
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