Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/56979
Full metadata record
DC FieldValueLanguage
dc.contributor.CRUESPUniversidade Estadual de Campinaspt_BR
dc.typeArtigo de periódicopt_BR
dc.titleMimicking the atmospheric OH-radical-mediated photooxidation of isoprene: formation of cloud-condensation nuclei polyols monitored by electrospray ionization mass spectrometrypt_BR
dc.contributor.authorSantos, LSpt_BR
dc.contributor.authorDalmazio, Ipt_BR
dc.contributor.authorEberlin, MNpt_BR
dc.contributor.authorClaeys, Mpt_BR
dc.contributor.authorAugusti, Rpt_BR
unicamp.author.emaileberlin@iqm.unicamp.brpt_BR
unicamp.authorUniv Estadual Campinas, Thomson Mass Spectrometry Lab, Inst Chem, BR-13083970 Campinas, SP, Brazil Univ Fed Minas Gerais, Dept Chem, BR-31270901 Belo Horizonte, MG, Brazil Univ Antwerp, Dept Pharmaceut Sci, B-2610 Antwerp, Belgiumpt_BR
dc.subject.wosSecondary Organic Aerosolspt_BR
dc.subject.wosGas-phasept_BR
dc.subject.wosOxidation-productspt_BR
dc.subject.wosChain-reactionspt_BR
dc.subject.wosReactivitypt_BR
dc.subject.wosMechanismspt_BR
dc.subject.wosSerinept_BR
dc.description.abstractRecently, it has been proposed (M. Claeys et al., Science 2004; 303: 1173) that the atmospheric OH-radical-mediated photooxidation of isoprene is a source of two major secondary organic aerosol (SOA) components, that is, 2-methylthreitol and 2-methylerythritol. These diastereoisomeric tetrols, which were characterized for the first time in the fine size fraction (< 2.5 mu m aerodynamic diameter) of aerosols collected in the Amazon rain forest during the wet season, were proposed to enhance the capability of the aerosols to act as cloud-condensation nuclei. In the present study, we performed the oxidation of isoprene in aqueous solution under conditions that attempted to mimic atmospheric OH-radical-induced photooxidization, and monitored and characterized on-line the reaction products via electrospray ionization mass (and tandem mass) spectrometry in the negative ion mode. The results show that the reaction of isoprene with photo- or chemically generated hydroxyl radicals indeed yields 2-methyltetrols. Other polyols were also detected, and they may therefore be considered as plausible SOA components eventually formed in normal or more extreme OH-radical-mediated photooxidation of biogenic isoprene. Copyright (c) 2006 John Wiley & Sons, Ltd.pt
dc.relation.ispartofRapid Communications In Mass Spectrometrypt_BR
dc.relation.ispartofabbreviationRapid Commun. Mass Spectrom.pt_BR
dc.publisher.cityChichesterpt_BR
dc.publisher.countryInglaterrapt_BR
dc.publisherJohn Wiley & Sons Ltdpt_BR
dc.date.issued2006pt_BR
dc.identifier.citationRapid Communications In Mass Spectrometry. John Wiley & Sons Ltd, v. 20, n. 14, n. 2104, n. 2108, 2006.pt_BR
dc.language.isoenpt_BR
dc.description.volume20pt_BR
dc.description.issuenumber14pt_BR
dc.description.firstpage2104pt_BR
dc.description.lastpage2108pt_BR
dc.rightsfechadopt_BR
dc.rights.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.htmlpt_BR
dc.sourceWeb of Sciencept_BR
dc.identifier.issn0951-4198pt_BR
dc.identifier.wosidWOS:000239054700006pt_BR
dc.identifier.doi10.1002/rcm.2574pt_BR
dc.date.available2014-11-16T19:12:43Z
dc.date.available2015-11-26T16:24:56Z-
dc.date.accessioned2014-11-16T19:12:43Z
dc.date.accessioned2015-11-26T16:24:56Z-
dc.description.provenanceMade available in DSpace on 2014-11-16T19:12:43Z (GMT). No. of bitstreams: 1 WOS000239054700006.pdf: 123209 bytes, checksum: cc0dcc8af5364a7fcf101b127e9ed776 (MD5) Previous issue date: 2006en
dc.description.provenanceMade available in DSpace on 2015-11-26T16:24:56Z (GMT). No. of bitstreams: 2 WOS000239054700006.pdf: 123209 bytes, checksum: cc0dcc8af5364a7fcf101b127e9ed776 (MD5) WOS000239054700006.pdf.txt: 19419 bytes, checksum: f2d4070b02693caffb26858763bf5c9b (MD5) Previous issue date: 2006en
dc.identifier.urihttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/56979pt_BR
dc.identifier.urihttp://www.repositorio.unicamp.br/handle/REPOSIP/56979
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/56979-
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
File Description SizeFormat 
WOS000239054700006.pdf120.32 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.