Sensitive luminescent paper-based sensor for the determination of gaseous hydrogen sulfide

Página do item simplificado
dc.contributor.authorPetruci, João Flavio da Silveira [UNESP]
dc.contributor.authorCardoso, Arnaldo Alves [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2015-10-21T20:21:55Z
dc.date.available2015-10-21T20:21:55Z
dc.date.issued2015-01-01
dc.description.abstractH2S is an extremely malodorous, toxic and corrosive gas. These properties make the localized emission of hydrogen sulfide an air pollution issue. Despite there being a relatively large number of papers in literature dedicated to developing analytical methods to determine gaseous H2S, it remains an analytical problem. In this paper, we describe a luminescent cellulose filter-based sensor for gaseous H2S determination. The cellulose filter is impregnated with a palladium complex, containing a ligand with fluorescent properties. The measurements are made directly on the cellulose filter, and thus do not require an extraction step. The palladium complex - bis(2-aminobenzoic)palladium(II) - impregnated on the surface of the cellulose filter paper reacts with gaseous H2S. The reaction results in the release of the fluorescent ligand, increasing the fluorescence intensity of the filter surface observed at 410 nm when excited at 338 nm. The linear calibration curve covers the range from 8 to 110 ppb, with a limit of detection (LOD) of 2 ppb. The sampling time is approximately 15 min for this range of H2S; however, a longer sampling may decrease the detection limit. The factors affecting the collection characteristics, such as sampling flow, media moisture, cellulose filter paper type and amount of humectant (ethylene glycol) in the impregnating solution amount, were optimized.en
dc.description.affiliationUnespUniversidade Estadual Paulista, Departamento de Química Analítica, Instituto de Química de Araraquara
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2013/22995-4
dc.format.extent2687-2692
dc.identifierhttp://pubs.rsc.org/en/Content/ArticleLanding/2015/AY/C4AY02952F
dc.identifier.citationAnalytical Methods. Cambridge: Royal Soc Chemistry, v. 7, n. 6, p. 2687-2692, 2015.
dc.identifier.doi10.1039/c4ay02952f
dc.identifier.issn1759-9660
dc.identifier.lattes9165109840414837
dc.identifier.urihttp://hdl.handle.net/11449/129099
dc.identifier.wosWOS:000351391800061
dc.language.isoeng
dc.publisherRoyal Soc Chemistry
dc.relation.ispartofAnalytical Methods
dc.relation.ispartofjcr2.073
dc.relation.ispartofsjr0,619
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleSensitive luminescent paper-based sensor for the determination of gaseous hydrogen sulfideen
dc.typeArtigo
dcterms.licensehttp://www.rsc.org/journals-books-databases/open-access/
dcterms.rightsHolderRoyal Soc Chemistry
unesp.author.lattes9165109840414837[2]
unesp.author.orcid0000-0003-2046-995X[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

Arquivos

Coleções

Artigos - Química Analítica - IQ