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dc.contributor.CRUESPUniversidade Estadual de Campinaspt_BR
dc.typeArtigo de periódicopt_BR
dc.titleMatrix-assisted diffusion-ordered spectroscopy: application of surfactant solutions to the resolution of isomer spectrapt_BR
dc.contributor.authorTormena, CFpt_BR
dc.contributor.authorEvans, Rpt_BR
dc.contributor.authorHaiber, Spt_BR
dc.contributor.authorNilsson, Mpt_BR
dc.contributor.authorMorris, GApt_BR
unicamp.author.emailg.a.morris@man-chester.ac.ukpt_BR
unicamp.authorEvans, Robert Nilsson, Mathias Morris, Gareth A. Univ Manchester, Sch Chem, Manchester M13 9PL, Lancs, Englandpt_BR
unicamp.authorTormena, Claudio F. Univ Estadual Campinas, Inst Chem, BR-13094971 Sao Paulo, Brazilpt_BR
unicamp.authorHaiber, Stephan Givaudan, Dept Analyt Res, NL-1411 GP Naarden, Netherlandspt_BR
dc.subjectNMRpt_BR
dc.subject1Hpt_BR
dc.subjectDOSYpt_BR
dc.subjectisomerspt_BR
dc.subjectalcoholspt_BR
dc.subjectdihydroxybenzenespt_BR
dc.subjectSDSpt_BR
dc.subjectAOTpt_BR
dc.subject.wosNmr-spectroscopypt_BR
dc.subject.wosChromatographic Nmrpt_BR
dc.subject.wosMolecular Micellespt_BR
dc.subject.wosVolatile Compoundspt_BR
dc.subject.wosSelf-diffusionpt_BR
dc.subject.wosMixturespt_BR
dc.subject.wosDosypt_BR
dc.subject.wosChemistrypt_BR
dc.subject.wosSolubilizationpt_BR
dc.subject.wosFermentationpt_BR
dc.description.abstractThe component spectra of a mixture of isomers with nearly identical diffusion coefficients cannot normally be distinguished in a standard diffusion-ordered spectroscopy (DOSY) experiment but can often be easily resolved using matrix-assisted DOSY, in which diffusion behaviour is manipulated by the addition of a co-solute such as a surfactant. Relatively little is currently known about the conditions required for such a separation, for example, how the choice between normal and reverse micelles affects separation or how the isomer structures themselves affect the resolution. The aim of this study was to explore the application of sodium dodecyl sulfate (SDS) normal micelles in aqueous solution and sodium 1,4-bis(2-ethylhexyl)sulfosuccinate (AOT) aggregates in chloroform, at a range of concentrations, to the diffusion resolution of some simple model sets of isomers such as monomethoxyphenols and short chain alcohols. It is shown that SDS micelles offer better resolution where these isomers differ in the position of a hydroxyl group, whereas AOT aggregates are more effective for isomers differing in the position of a methyl group. For both the normal SDS micelles and the less well-defined AOT aggregates, differences in the resolution of the isomers can in part be rationalised in terms of differing degrees of hydrophobicity, amphiphilicity and steric effects. Copyright (c) 2012 John Wiley & Sons, Ltd.pt
dc.relation.ispartofMagnetic Resonance In Chemistrypt_BR
dc.relation.ispartofabbreviationMagn. Reson. Chem.pt_BR
dc.publisher.cityMaldenpt_BR
dc.publisher.countryEUApt_BR
dc.publisherWiley-blackwellpt_BR
dc.date.issued2012pt_BR
dc.date.monthofcirculationJUNpt_BR
dc.identifier.citationMagnetic Resonance In Chemistry. Wiley-blackwell, v. 50, n. 6, n. 458, n. 465, 2012.pt_BR
dc.language.isoenpt_BR
dc.description.volume50pt_BR
dc.description.issuenumber6pt_BR
dc.description.initialpage458pt_BR
dc.description.lastpage465pt_BR
dc.rightsfechadopt_BR
dc.rights.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.htmlpt_BR
dc.sourceWeb of Sciencept_BR
dc.identifier.issn0749-1581pt_BR
dc.identifier.wosidWOS:000304086100008pt_BR
dc.identifier.doi10.1002/mrc.3822pt_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorshipEngineering and Physical Sciences Research Council [EP/H024336/1, EP/E05899X/1]pt_BR
dc.description.sponsorship1Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsordocumentnumberFAPESP [09/02736-9]pt
dc.description.sponsordocumentnumberEngineering and Physical Sciences Research Council [EP/H024336/1, EP/E05899X/1]pt
dc.date.available2014-07-30T13:39:57Z
dc.date.available2015-11-26T16:40:31Z-
dc.date.accessioned2014-07-30T13:39:57Z
dc.date.accessioned2015-11-26T16:40:31Z-
dc.description.provenanceMade available in DSpace on 2014-07-30T13:39:57Z (GMT). No. of bitstreams: 0 Previous issue date: 2012en
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dc.identifier.urihttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/53345
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/53345-
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