Expanded uncertainty assessment in fish samples analyzed by INAA and AAS

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dc.contributor.authorTAPPIZ, BRUNOpt_BR
dc.contributor.authorMOREIRA, EDSON G.pt_BR
dc.coverageNacionalpt_BR
dc.date.accessioned2021-08-02T18:06:05Z
dc.date.available2021-08-02T18:06:05Z
dc.date.issued2021pt_BR
dc.description.abstractMeasurement uncertainty was estimated following the EURACHEM guide (Quantifying Uncertainty in Analytical Measurement) for the elements As, Br, Cl, Co, Cr, Cs, Fe, K, Mg, Mn, Na, Rb, Sb, Se and Zn determined by In-strumental Neutron Activation Analysis (INAA) and for the elements Cd, Hg and Pb determined by Atomic Absorption Spectrometry (AAS) in the fillet of the most consumed fish species at São Paulo city, Brazil. INAA expanded uncertainties ranged from 1.0 to 21% and the main contributions were due the counting statistics of sample and pipetted standards. For AAS, expanded uncertainties ranged from 6.5 to 13% and the main contri-butions were associated to the calibration curves. Uncertainty results were compared with the standard devia-tions of the mass fraction in the fishes (n = 10). Due to the wide variability in the mass fraction in the analyzed fish tissues, explained by factors such gender, age, fat content and fishing location of the specimens of each spe-cies, standard deviations were greater than expanded uncertainties, which means that the natural variability of the elements determined is greater than the data dispersion associated with the analytical techniques. Hence the used techniques were adequate for the fish fillet samples analyses.pt_BR
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorshipInternational Atomic Energy Agency (IAEA)pt_BR
dc.description.sponsorshipIDCNPq: 130043/2017-6pt_BR
dc.description.sponsorshipIDFAPESP: 15/10774-9; 09/01452-7pt_BR
dc.description.sponsorshipIDIAEA: RLA/5/054pt_BR
dc.format.extent1-14pt_BR
dc.identifier.citationTAPPIZ, BRUNO; MOREIRA, EDSON G. Expanded uncertainty assessment in fish samples analyzed by INAA and AAS. <b>Brazilian Journal of Radiation Sciences</b>, v. 9, n. 1A, p. 1-14, 2021. DOI: <a href="https://dx.doi.org/10.15392/bjrs.v9i1A.1314">10.15392/bjrs.v9i1A.1314</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/32090.
dc.identifier.doi10.15392/bjrs.v9i1A.1314pt_BR
dc.identifier.fasciculo1Apt_BR
dc.identifier.issn2319-0612pt_BR
dc.identifier.percentilfiSem Percentilpt_BR
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/32090
dc.identifier.vol9pt_BR
dc.relation.ispartofBrazilian Journal of Radiation Sciencespt_BR
dc.rightsopenAccesspt_BR
dc.sourceMeeting on Nuclear Applications (ENAN), 14th, October 21-25, 2019, Santos, SPpt_BR
dc.subjectabsorption spectroscopy
dc.subjectdata covariances
dc.subjectevaluation
dc.subjectfishes
dc.subjectneutron activation analysis
dc.subjecttoxicity
dc.titleExpanded uncertainty assessment in fish samples analyzed by INAA and AASpt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorBRUNO TAPPIZ
ipen.autorEDSON GONCALVES MOREIRA
ipen.codigoautor11684
ipen.codigoautor860
ipen.contributor.ipenauthorBRUNO TAPPIZ
ipen.contributor.ipenauthorEDSON GONCALVES MOREIRA
ipen.date.recebimento21-08
ipen.identifier.fiSem F.I.pt_BR
ipen.identifier.ipendoc27861pt_BR
ipen.type.genreArtigo
relation.isAuthorOfPublicationc0e9f90d-82a0-49d8-8e85-49e140aebace
relation.isAuthorOfPublicationfdac8528-3b24-47a1-9906-6c20d6a32b56
relation.isAuthorOfPublication.latestForDiscoveryc0e9f90d-82a0-49d8-8e85-49e140aebace
sigepi.autor.atividadeMOREIRA, EDSON G.:860:320:Npt_BR
sigepi.autor.atividadeTAPPIZ, BRUNO:11684:520:Spt_BR
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