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A new palladium chelate compound for determination of sulfide

dc.contributor.authorPetruci, João Flávio da Silveira [UNESP]
dc.contributor.authorCardoso, Arnaldo Alves [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:27:29Z
dc.date.available2014-05-27T11:27:29Z
dc.date.issued2013-01-01
dc.description.abstractA new palladium chelate compound is described for the determination of sulfide in aqueous samples. The reagent, bis(2-aminobenzoate)palladium(II) (PdA 2), was prepared by reaction of tetrachloropalladate (PdCl 4 -) with 2-aminobenzoic acid. The compound was characterized by infrared spectroscopy and CHN elemental analysis. The measurement was based on the selective reaction of PdA 2 with sulfide in an aqueous medium, which quantitatively produced fluorescent 2-aminobenzoate (λ ex=245nm, λ em=410nm). The analytical response was linear in the range 0.10-20.0μmol (S 2-) L -1 (r>0.99), with a limit of detection of 0.075μmolL -1 and repeatability (RSD) of 3.4%. There was no interference from CO 3 2-, NO 3 -, Cl -, SO 4 2-, Br -, NO 2 -, K +, NH 4 +, Na +, citrate or S 2O 8 2-. The fluorescence intensity decreased in the presence of H 3CCOO -, PO 4 3- and SCN -, while OH - caused a positive interference. The new fluorescent compound was successfully applied for the determination of sulfide in synthetic wastewater and natural water sample. The advantages of the proposed palladium chelate are absence of toxic by-products, simple synthesis procedure of reagent and yield reaction of about 85%, easy handling and fast acquirement of analytical signal. © 2012 Elsevier B.V.en
dc.description.affiliationDepartment of Analytical Chemistry Institute of Chemistry UNESP, Araraquara, SP, 14800-900
dc.description.affiliationUnespDepartment of Analytical Chemistry Institute of Chemistry UNESP, Araraquara, SP, 14800-900
dc.format.extent368-372
dc.identifierhttp://dx.doi.org/10.1016/j.microc.2012.09.009
dc.identifier.citationMicrochemical Journal, v. 106, p. 368-372.
dc.identifier.doi10.1016/j.microc.2012.09.009
dc.identifier.issn0026-265X
dc.identifier.lattes9165109840414837
dc.identifier.scopus2-s2.0-84868301215
dc.identifier.urihttp://hdl.handle.net/11449/74184
dc.identifier.wosWOS:000312826500053
dc.language.isoeng
dc.relation.ispartofMicrochemical Journal
dc.relation.ispartofjcr2.746
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subject2-Aminobenzoic acid
dc.subjectFluorimetric determination
dc.subjectPalladium
dc.subjectSulfide
dc.titleA new palladium chelate compound for determination of sulfideen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
unesp.author.lattes9165109840414837[2]
unesp.author.orcid0000-0003-2046-995X[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt
unesp.departmentQuímica Analítica - IQARpt

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