Comparação de diferentes abordagens para avaliação da incerteza na cromatografia gasosa do gás natural

Detalhes bibliográficos
Autor(a) principal: Oliveira,Elcio Cruz de
Data de Publicação: 2009
Outros Autores: Aguiar,Paula Fernandes de
Tipo de documento: Artigo
Idioma: por
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000600051
Resumo: The evaluation of uncertainty associated with an analytic result is an essential part of the measurement process. Recently, several approaches to evaluate the uncertainty in measurement have been developed. Here, the gas chromatography assay uncertainty for natural gas is compared by some of these approaches: the guide to the expression of uncertainty in measurement (GUM) approach, top-down approach (reproducibility estimate from an inter-laboratory study), Barwick & Ellison (data from validation), study of variability and fuzzy approach. The comparison shows that GUM, Barwick & Ellison and fuzzy approaches lead to comparable uncertainty evaluations, which does not happen with the top-down approach and study of variability by the absence of data normality.
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spelling Comparação de diferentes abordagens para avaliação da incerteza na cromatografia gasosa do gás naturalmeasurement uncertaintyGUM approachtop-down approachThe evaluation of uncertainty associated with an analytic result is an essential part of the measurement process. Recently, several approaches to evaluate the uncertainty in measurement have been developed. Here, the gas chromatography assay uncertainty for natural gas is compared by some of these approaches: the guide to the expression of uncertainty in measurement (GUM) approach, top-down approach (reproducibility estimate from an inter-laboratory study), Barwick & Ellison (data from validation), study of variability and fuzzy approach. The comparison shows that GUM, Barwick & Ellison and fuzzy approaches lead to comparable uncertainty evaluations, which does not happen with the top-down approach and study of variability by the absence of data normality.Sociedade Brasileira de Química2009-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000600051Química Nova v.32 n.6 2009reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422009000600051info:eu-repo/semantics/openAccessOliveira,Elcio Cruz deAguiar,Paula Fernandes depor2009-09-22T00:00:00Zoai:scielo:S0100-40422009000600051Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2009-09-22T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Comparação de diferentes abordagens para avaliação da incerteza na cromatografia gasosa do gás natural
title Comparação de diferentes abordagens para avaliação da incerteza na cromatografia gasosa do gás natural
spellingShingle Comparação de diferentes abordagens para avaliação da incerteza na cromatografia gasosa do gás natural
Oliveira,Elcio Cruz de
measurement uncertainty
GUM approach
top-down approach
title_short Comparação de diferentes abordagens para avaliação da incerteza na cromatografia gasosa do gás natural
title_full Comparação de diferentes abordagens para avaliação da incerteza na cromatografia gasosa do gás natural
title_fullStr Comparação de diferentes abordagens para avaliação da incerteza na cromatografia gasosa do gás natural
title_full_unstemmed Comparação de diferentes abordagens para avaliação da incerteza na cromatografia gasosa do gás natural
title_sort Comparação de diferentes abordagens para avaliação da incerteza na cromatografia gasosa do gás natural
author Oliveira,Elcio Cruz de
author_facet Oliveira,Elcio Cruz de
Aguiar,Paula Fernandes de
author_role author
author2 Aguiar,Paula Fernandes de
author2_role author
dc.contributor.author.fl_str_mv Oliveira,Elcio Cruz de
Aguiar,Paula Fernandes de
dc.subject.por.fl_str_mv measurement uncertainty
GUM approach
top-down approach
topic measurement uncertainty
GUM approach
top-down approach
description The evaluation of uncertainty associated with an analytic result is an essential part of the measurement process. Recently, several approaches to evaluate the uncertainty in measurement have been developed. Here, the gas chromatography assay uncertainty for natural gas is compared by some of these approaches: the guide to the expression of uncertainty in measurement (GUM) approach, top-down approach (reproducibility estimate from an inter-laboratory study), Barwick & Ellison (data from validation), study of variability and fuzzy approach. The comparison shows that GUM, Barwick & Ellison and fuzzy approaches lead to comparable uncertainty evaluations, which does not happen with the top-down approach and study of variability by the absence of data normality.
publishDate 2009
dc.date.none.fl_str_mv 2009-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000600051
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000600051
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv 10.1590/S0100-40422009000600051
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Química Nova v.32 n.6 2009
reponame:Química Nova (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Química Nova (Online)
collection Química Nova (Online)
repository.name.fl_str_mv Química Nova (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv quimicanova@sbq.org.br
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