Is my bottom-up uncertainty estimation on metal measurement adequate?
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Journal of Physics: Conference Series
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Is the estimated uncertainty under GUM recommendation associated with metal
measurement adequately estimated? How to evaluate if the measurement uncertainty really
covers all uncertainty that is associated with the analytical procedure? Considering that, many
laboratories frequently underestimate or less frequently overestimate uncertainties on its results;
this paper presents the evaluation of estimated uncertainties on two ICP-OES procedures of
seven metal measurements according to GUM approach. Horwitz function and proficiency tests
scaled standard uncertainties were used in this evaluation. Our data shows that most elements
expanded uncertainties were from two to four times underestimated. Possible causes and
corrections are discussed herein.
Como referenciar
MARQUES, J.R.; FAUSTINO, M.G.; MONTEIRO, L.R.; ULRICH, J.C.; PIRES, M.A.F.; COTRIM, M.E.B. Is my bottom-up uncertainty estimation on metal measurement adequate?. Journal of Physics: Conference Series, v. 975, n. 012009, p. 1-4, 2018. DOI: 10.1088/1742-6596/975/1/012009. Disponível em: http://repositorio.ipen.br/handle/123456789/28970. Acesso em: 30 Dec 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.