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Development of a simple and versatile ultrafiltration system for the fractionation of aquatic humic substances

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dc.contributor.authorPantano, Glaucia [UNESP]
dc.contributor.authorTadini, Amanda M. [UNESP]
dc.contributor.authorBisinoti, Marcia Cristina [UNESP]
dc.contributor.authorMoreira, Altair Benedito [UNESP]
dc.contributor.authorSantos, Ademir dos [UNESP]
dc.contributor.authorOliveira, Luciana Camargo de
dc.contributor.authorMartin, Cibely S. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.date.accessioned2014-05-20T14:03:08Z
dc.date.available2014-05-20T14:03:08Z
dc.date.issued2012-02-01
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.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.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 07/50461-3
dc.description.sponsorshipIdFAPESP: 05/51242-8
dc.format.extent156-161
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.doi10.1016/j.orggeochem.2011.10.002
dc.identifier.issn0146-6380
dc.identifier.lattes3264480044529380
dc.identifier.lattes5323771001380189
dc.identifier.urihttp://hdl.handle.net/11449/22250
dc.identifier.wosWOS:000299815000015
dc.language.isoeng
dc.publisherPergamon-Elsevier B.V. Ltd
dc.relation.ispartofOrganic Geochemistry
dc.relation.ispartofjcr2.810
dc.relation.ispartofsjr1,287
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleDevelopment of a simple and versatile ultrafiltration system for the fractionation of aquatic humic substancesen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderPergamon-Elsevier B.V. Ltd
dspace.entity.typePublication
unesp.author.lattes3264480044529380
unesp.author.lattes5323771001380189[4]
unesp.author.orcid0000-0002-4631-2400[3]
unesp.author.orcid0000-0003-2571-4125[2]
unesp.author.orcid0000-0001-5868-4300[1]
unesp.author.orcid0000-0001-7903-2360[4]
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Ciências e Tecnologia, Presidente Prudentept
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Biociências, Letras e Ciências Exatas, São José do Rio Pretopt
unesp.departmentFísica, Química e Biologia - FCTpt
unesp.departmentQuímica e Ciências Ambientais - IBILCEpt

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São José do Rio Preto - IBILCE - Instituto de Biociências, Letras e Ciências Exatas
Presidente Prudente - FCT - Faculdade de Ciências e Tecnologia