Homogeneity study on biological candidate reference materials
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2017
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60 YEARS OF IEA-R1: INTERNATIONAL WORKSHOP ON UTILIZATION OF RESEARCH REACTORS
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Resumo
Instrumental Neutron activation Analysis (INAA) is a mature nuclear analytical
technique able to accurately determine chemical elements without the need of sample
digestion and, hence, without the associated problems of analyte loss or contamination.
This feature, along with its potentiality use as a primary method of analysis,
makes it an important tool for the characterization of new references materials and
in the assessment of their homogeneity status. In this study, the ability of the comparative
method of INAA for the within-bottle homogeneity of K, Mg, Mn and V in a
mussel reference material was investigated. Method parameters, such as irradiation
time, sample decay time and distance from sample to the detector were varied in
order to allow element determination in subsamples of different sample masses in
duplicate. Sample masses were in the range of 1 to 250 mg and the limitations
of the detection limit for small sample masses and dead time distortions for large
sample masses were investigated.
Como referenciar
SILVA, D.P.; MOREIRA, E.G. Homogeneity study on biological candidate reference materials: the role of neutron activation analysis. In: 60 YEARS OF IEA-R1: INTERNATIONAL WORKSHOP ON UTILIZATION OF RESEARCH REACTORS, November 28 - December 01, 2017, São Paulo, SP. Abstract... São Paulo, SP: Instituto de Pesquisas Energéticas e Nucleares, 2017. p. 25-25. Disponível em: http://repositorio.ipen.br/handle/123456789/28718. Acesso em: 14 Mar 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.