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dc.contributor.CRUESPUniversidade Estadual de Campinaspt_BR
dc.typeArtigo de periódicopt_BR
dc.titleIndigo Carmine degradation by hypochlorite in aqueous medium monitored by electrospray ionization mass spectrometrypt_BR
dc.contributor.authorde Urzedo, APFMpt_BR
dc.contributor.authorNascentes, CCpt_BR
dc.contributor.authorDiniz, MERpt_BR
dc.contributor.authorCatharino, RRpt_BR
dc.contributor.authorEberlin, MNpt_BR
dc.contributor.authorAugusti, Rpt_BR
unicamp.author.emailaugusti@ufmg.brpt_BR
unicamp.authorUniv Fed Minas Gerais, Dept Quim, BR-31270901 Belo Horizonte, MG, Brazil Univ Estadual Campinas, Inst Chem, Thomson Mass Spectrometry Lab, BR-13083970 Campinas, SP, Brazilpt_BR
dc.subject.wosChemical-reactionspt_BR
dc.subject.wosOxidative-degradationpt_BR
dc.subject.wosTitanium-dioxidept_BR
dc.subject.wosChain-reactionspt_BR
dc.subject.wosWaste-waterpt_BR
dc.subject.wosIdentificationpt_BR
dc.subject.wosMechanismpt_BR
dc.subject.wosRemovalpt_BR
dc.subject.wosMspt_BR
dc.subject.wosPhotodegradationpt_BR
dc.description.abstractThe degradation of the dye Indigo Carmine by hypochlorite in aqueous solution was monitored by electrospray ionization mass spectrometry in the negative ion mode (ESI(-)-MS). Hypochlorite was highly efficient in removing the color of aqueous solutions of the dye. ESI(-)-MS monitoring showed that concomitant with the Indigo Carmine consumption two transient species appeared (detected as doubly charged anions) probably formed via a net insertion of two hydroxyl groups at the exocyclic C=C bond followed by the incorporation of two (mainly) or one oxygen atoms at the indolic rings of the dye. Structures of these products were proposed based on the ESI(-)-MS/MS data and high accuracy mass measurements. These two transient intermediates quickly decomposed, both in the condensed and in the gas phase, to yield mono-charged anions. Based on these results, a route for the Indigo Carmine degradation by hypochlorite in aqueous solution has been proposed. Copyright (C) 2007 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.issued2007pt_BR
dc.identifier.citationRapid Communications In Mass Spectrometry. John Wiley & Sons Ltd, v. 21, n. 12, n. 1893, n. 1899, 2007.pt_BR
dc.language.isoenpt_BR
dc.description.volume21pt_BR
dc.description.issuenumber12pt_BR
dc.description.firstpage1893pt_BR
dc.description.lastpage1899pt_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:000247217300010pt_BR
dc.identifier.doi10.1002/rcm.3037pt_BR
dc.date.available2014-11-19T07:51:32Z
dc.date.available2015-11-26T18:01:09Z-
dc.date.accessioned2014-11-19T07:51:32Z
dc.date.accessioned2015-11-26T18:01:09Z-
dc.description.provenanceMade available in DSpace on 2014-11-19T07:51:32Z (GMT). No. of bitstreams: 1 WOS000247217300010.pdf: 223306 bytes, checksum: 88c1a3275d8858b30448cf1a2ae0715b (MD5) Previous issue date: 2007en
dc.description.provenanceMade available in DSpace on 2015-11-26T18:01:09Z (GMT). No. of bitstreams: 2 WOS000247217300010.pdf: 223306 bytes, checksum: 88c1a3275d8858b30448cf1a2ae0715b (MD5) WOS000247217300010.pdf.txt: 22454 bytes, checksum: 6d14bcae2b1d227dc566b0e957393c7f (MD5) Previous issue date: 2007en
dc.identifier.urihttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/60065pt_BR
dc.identifier.urihttp://www.repositorio.unicamp.br/handle/REPOSIP/60065
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/60065-
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