Development of Analytical Procedures for Lead Determination in Incense by Graphite Furnace AAS

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dc.contributor.authorCoco, Jessica [UNESP]
dc.contributor.authorBechlin, Marcos A. [UNESP]
dc.contributor.authorBarros, Ariane I. [UNESP]
dc.contributor.authorFerreira, Edilene C. [UNESP]
dc.contributor.authorVeiga, Marcia A. M. S.
dc.contributor.authorNeto, Jose A. Gomes [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2018-11-26T15:47:28Z
dc.date.available2018-11-26T15:47:28Z
dc.date.issued2017-11-01
dc.description.abstractThe use of incense has increased over the past years; however, few studies have been carried out concerning the quantification of toxic elements. This article describes the development of analytical methods for Pb determination in the rod and coating of incense sticks by solid sampling high-resolution continuum source graphite furnace atomic absorption spectrometry (SS HR-CS GFAAS). For comparative purposes, samples were also analyzed by line source graphite furnace atomic absorption spectrometry (IS GFAAS) after acid microwave-assisted digestion. The concentration of lead varied from 0.06 a 2.17 mu g g(-1) in the rods and 1.06 to 6.60 mu g g(-1) for the coating. A paired t-test at a 95% confidence level showed that the SS HR-CS GFAAS results were in agreement with those obtained by LS GFAAS. The precision of measurements obtained by SS HR-CS GFAAS varied from 0.5 to 16% and 1.9 to 15% for rod and coating, respectively. Also, emission of lead generated when the incense stick samples were burning was evaluated by ash analysis and the mass balance applied for total lead in the whole samples and the remaining lead in the ashes. These findings showed that 25 to 80% of the total lead content in incense may be released to the air. These large variations may be related to the type of raw materials (chemical composition) employed in incense production.en
dc.description.affiliationSao Paulo State Univ, Inst Chem, BR-14800060 Araraquara, SP, Brazil
dc.description.affiliationUniv Sao Paulo, FFCLRP, Dept Quim, Ribeirao Preto, SP, Brazil
dc.description.affiliationUnespSao Paulo State Univ, Inst Chem, BR-14800060 Araraquara, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFAPESP: 14/12595-1
dc.description.sponsorshipIdCNPq: 303255/2013-7
dc.format.extent208-212
dc.identifier.citationAtomic Spectroscopy. Shelton: Perkin-elmer Corp, v. 38, n. 6, p. 208-212, 2017.
dc.identifier.issn0195-5373
dc.identifier.urihttp://hdl.handle.net/11449/160096
dc.identifier.wosWOS:000425203700006
dc.language.isoeng
dc.publisherPerkin-elmer Corp
dc.relation.ispartofAtomic Spectroscopy
dc.relation.ispartofsjr0,327
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleDevelopment of Analytical Procedures for Lead Determination in Incense by Graphite Furnace AASen
dc.typeArtigo
dcterms.rightsHolderPerkin-elmer Corp

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