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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/22250
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dc.contributor.authorPantano, Glaucia-
dc.contributor.authorTadini, Amanda M.-
dc.contributor.authorBisinoti, Marcia Cristina-
dc.contributor.authorMoreira, Altair Benedito-
dc.contributor.authorSantos, Ademir dos-
dc.contributor.authorOliveira, Luciana Camargo de-
dc.contributor.authorMartin, Cibely S.-
dc.date.accessioned2014-05-20T14:03:08Z-
dc.date.accessioned2016-10-25T17:09:31Z-
dc.date.available2014-05-20T14:03:08Z-
dc.date.available2016-10-25T17:09:31Z-
dc.date.issued2012-02-01-
dc.identifierhttp://dx.doi.org/10.1016/j.orggeochem.2011.10.002-
dc.identifier.citationOrganic Geochemistry. Oxford: Pergamon-Elsevier B.V. Ltd, v. 43, p. 156-161, 2012.-
dc.identifier.issn0146-6380-
dc.identifier.urihttp://hdl.handle.net/11449/22250-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/22250-
dc.description.abstractA new fractionation system using membrane ultrafiltration was developed and applied to aqueous extracts of humic substances (HSs). Four polyethersulfone membranes of molecular weight cut offs of 10, 30, 50 and 100 kDa were used. The system was quite efficient in fractionating HSs with different molecular sizes. HS fractions were characterized by Fourier transform infrared spectroscopy and ultraviolet/visible spectrophotometry to obtain E-2/E-3 ratios, which describe the aromaticity of the fractions. The E-2/E-3 ratios were in agreement with those obtained using current commercial systems, and FTIR spectra of all fractions presented characteristic bands of the HSs. Therefore, it can be concluded that this system is a simple, versatile and low cost alternative to the current systems on the market. (C) 2011 Elsevier Ltd. All rights reserved.en
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
dc.format.extent156-161-
dc.language.isoeng-
dc.publisherPergamon-Elsevier B.V. Ltd-
dc.sourceWeb of Science-
dc.titleDevelopment of a simple and versatile ultrafiltration system for the fractionation of aquatic humic substancesen
dc.typeoutro-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)-
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.affiliationUniv Estadual Paulista, Inst Quim Araraquara, BR-14800900 Araraquara, SP, Brazil-
dc.description.affiliationUniversidade Federal de São Carlos (UFSCar), BR-18052780 Sorocaba, SP, Brazil-
dc.description.affiliationUniv Estadual Paulista, Dept Quim Fis & Biol, Fac Ciência & Tecnol, BR-19060900 Presidente Prudente, 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.description.affiliationUnespUniv Estadual Paulista, Inst Quim Araraquara, BR-14800900 Araraquara, SP, Brazil-
dc.description.affiliationUnespUniv Estadual Paulista, Dept Quim Fis & Biol, Fac Ciência & Tecnol, BR-19060900 Presidente Prudente, SP, Brazil-
dc.description.sponsorshipIdFAPESP: 07/50461-3-
dc.description.sponsorshipIdFAPESP: 05/51242-8-
dc.identifier.doi10.1016/j.orggeochem.2011.10.002-
dc.identifier.wosWOS:000299815000015-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofOrganic Geochemistry-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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