Performance verification and measurement uncertainty estimation for the determination of sodium chloride in butter
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Eletrônica em Gestão Educação e Tecnologia Ambiental (REGET) |
Texto Completo: | https://periodicos.ufsm.br/reget/article/view/37607 |
Resumo: | The minimum parameters of identity and quality of butters in Brazil are governed by the Ministry of Agriculture, Livestock and Supply. From them it is possible to carry out the performance verification of the methodologies to guarantee the results reliability. Thus, the objective of this study was to analyze the performance of the method of determination of NaCl in butter, based on ISO 1738:2004, evaluating accuracy, precision and the limit of quantification (LOQ). The precision was obtained since the coefficients of variation found in the tests were lower than the Horwitz value. The accuracy was approved as a consequence of the confirmation of the proficiency having as provider the FAPAS. The LOQ of 0.41g of NaCl/100g of butter was established by evaluating the accuracy and the recovery in a NaCl content determination test, using a solution prepared with Certified Reference Material. To assure quality, the uncertainty associated with the NaCl measurement was also estimated, through the evaluation of the possible sources of uncertainty, among which were: weighing, analyzer, glassware and the reagent purity, with a measurement uncertainty of 0.03g NaCl/100g of sample. Finally, it was verified the conformity of the NaCl content in commercial samples according to the Brazilian legislation. |
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Performance verification and measurement uncertainty estimation for the determination of sodium chloride in butterVerificação de desempenho e estimativa de incerteza de medição de metodologia de determinação de cloreto de sódio em manteigaAdulterationFoodMethodologyReliabilityNaClAdulteraçãoAlimentoMetodologiaConfiabilidadeThe minimum parameters of identity and quality of butters in Brazil are governed by the Ministry of Agriculture, Livestock and Supply. From them it is possible to carry out the performance verification of the methodologies to guarantee the results reliability. Thus, the objective of this study was to analyze the performance of the method of determination of NaCl in butter, based on ISO 1738:2004, evaluating accuracy, precision and the limit of quantification (LOQ). The precision was obtained since the coefficients of variation found in the tests were lower than the Horwitz value. The accuracy was approved as a consequence of the confirmation of the proficiency having as provider the FAPAS. The LOQ of 0.41g of NaCl/100g of butter was established by evaluating the accuracy and the recovery in a NaCl content determination test, using a solution prepared with Certified Reference Material. To assure quality, the uncertainty associated with the NaCl measurement was also estimated, through the evaluation of the possible sources of uncertainty, among which were: weighing, analyzer, glassware and the reagent purity, with a measurement uncertainty of 0.03g NaCl/100g of sample. Finally, it was verified the conformity of the NaCl content in commercial samples according to the Brazilian legislation.Os parâmetros mínimos de identidade e qualidade de manteigas no Brasil são regidos pelo Ministério da Agricultura Pecuária e Abastecimento. A partir deles é possível realizar a verificação de desempenho das metodologias para garantir a confiabilidade dos resultados. Assim, objetivou-se analisar o desempenho do método de determinação de NaCl em manteiga, baseado na ISO 1738:2004, avaliando-se precisão, exatidão e limite de quantificação (LQ). Aprecisão foi alcançada visto que os coeficientes de variação obtidos nos ensaios foram inferiores ao valor de Horwitz calculado. A exatidão foi aprovada como consequência da confirmação da proficiência tendo como provedor o FAPAS. O LQ de 0,41g de NaCl/100g de manteiga foi estabelecido avaliando-se a precisão e a recuperação em ensaio de determinação do teor de NaCl em uma solução preparada com Material de Referência Certificado. Como forma de garantia da qualidade, estimou-se ainda a incerteza associada a medição de NaCl por meio da avaliação das possíveisfontes de incerteza, dentre as quais: pesagem, analista, vidraria e o grau de pureza do reagente, verificando-se uma incerteza de medição total de 0,03g NaCl/100g de amostra. Por fim, constatou-se a conformidade do teor de NaCl em amostras comerciais de acordo com a legislação brasileira vigente.Universidade Federal de Santa Maria2019-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsm.br/reget/article/view/3760710.5902/2236117037607Revista Eletrônica em Gestão, Educação e Tecnologia Ambiental; REGET, V. 23, 2019; e26Revista Eletrônica em Gestão, Educação e Tecnologia Ambiental; REGET, V. 23, 2019; e262236-11702236-1170reponame:Revista Eletrônica em Gestão Educação e Tecnologia Ambiental (REGET)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMenghttps://periodicos.ufsm.br/reget/article/view/37607/pdfCopyright (c) 2019 Revista Eletrônica em Gestão, Educação e Tecnologia Ambientalinfo:eu-repo/semantics/openAccessMoura, Thalita Cristhina de LimaRibeiro, Beatriz GaldinoDavid, Paulo Roberto SalomãoLucena, Alex Leandro Andrade deAndrade, Marcelo Farias deNapoleão, Daniella Carla2020-04-09T21:02:26Zoai:ojs.pkp.sfu.ca:article/37607Revistahttps://periodicos.ufsm.br/regetPUBhttps://periodicos.ufsm.br/reget/oaimarcelobdarosa@gmail.com||reget.ufsm@gmail.com2236-11702236-1170opendoar:2020-04-09T21:02:26Revista Eletrônica em Gestão Educação e Tecnologia Ambiental (REGET) - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
Performance verification and measurement uncertainty estimation for the determination of sodium chloride in butter Verificação de desempenho e estimativa de incerteza de medição de metodologia de determinação de cloreto de sódio em manteiga |
title |
Performance verification and measurement uncertainty estimation for the determination of sodium chloride in butter |
spellingShingle |
Performance verification and measurement uncertainty estimation for the determination of sodium chloride in butter Moura, Thalita Cristhina de Lima Adulteration Food Methodology Reliability NaCl Adulteração Alimento Metodologia Confiabilidade |
title_short |
Performance verification and measurement uncertainty estimation for the determination of sodium chloride in butter |
title_full |
Performance verification and measurement uncertainty estimation for the determination of sodium chloride in butter |
title_fullStr |
Performance verification and measurement uncertainty estimation for the determination of sodium chloride in butter |
title_full_unstemmed |
Performance verification and measurement uncertainty estimation for the determination of sodium chloride in butter |
title_sort |
Performance verification and measurement uncertainty estimation for the determination of sodium chloride in butter |
author |
Moura, Thalita Cristhina de Lima |
author_facet |
Moura, Thalita Cristhina de Lima Ribeiro, Beatriz Galdino David, Paulo Roberto Salomão Lucena, Alex Leandro Andrade de Andrade, Marcelo Farias de Napoleão, Daniella Carla |
author_role |
author |
author2 |
Ribeiro, Beatriz Galdino David, Paulo Roberto Salomão Lucena, Alex Leandro Andrade de Andrade, Marcelo Farias de Napoleão, Daniella Carla |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Moura, Thalita Cristhina de Lima Ribeiro, Beatriz Galdino David, Paulo Roberto Salomão Lucena, Alex Leandro Andrade de Andrade, Marcelo Farias de Napoleão, Daniella Carla |
dc.subject.por.fl_str_mv |
Adulteration Food Methodology Reliability NaCl Adulteração Alimento Metodologia Confiabilidade |
topic |
Adulteration Food Methodology Reliability NaCl Adulteração Alimento Metodologia Confiabilidade |
description |
The minimum parameters of identity and quality of butters in Brazil are governed by the Ministry of Agriculture, Livestock and Supply. From them it is possible to carry out the performance verification of the methodologies to guarantee the results reliability. Thus, the objective of this study was to analyze the performance of the method of determination of NaCl in butter, based on ISO 1738:2004, evaluating accuracy, precision and the limit of quantification (LOQ). The precision was obtained since the coefficients of variation found in the tests were lower than the Horwitz value. The accuracy was approved as a consequence of the confirmation of the proficiency having as provider the FAPAS. The LOQ of 0.41g of NaCl/100g of butter was established by evaluating the accuracy and the recovery in a NaCl content determination test, using a solution prepared with Certified Reference Material. To assure quality, the uncertainty associated with the NaCl measurement was also estimated, through the evaluation of the possible sources of uncertainty, among which were: weighing, analyzer, glassware and the reagent purity, with a measurement uncertainty of 0.03g NaCl/100g of sample. Finally, it was verified the conformity of the NaCl content in commercial samples according to the Brazilian legislation. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-06-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufsm.br/reget/article/view/37607 10.5902/2236117037607 |
url |
https://periodicos.ufsm.br/reget/article/view/37607 |
identifier_str_mv |
10.5902/2236117037607 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufsm.br/reget/article/view/37607/pdf |
dc.rights.driver.fl_str_mv |
Copyright (c) 2019 Revista Eletrônica em Gestão, Educação e Tecnologia Ambiental info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2019 Revista Eletrônica em Gestão, Educação e Tecnologia Ambiental |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
Revista Eletrônica em Gestão, Educação e Tecnologia Ambiental; REGET, V. 23, 2019; e26 Revista Eletrônica em Gestão, Educação e Tecnologia Ambiental; REGET, V. 23, 2019; e26 2236-1170 2236-1170 reponame:Revista Eletrônica em Gestão Educação e Tecnologia Ambiental (REGET) instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Revista Eletrônica em Gestão Educação e Tecnologia Ambiental (REGET) |
collection |
Revista Eletrônica em Gestão Educação e Tecnologia Ambiental (REGET) |
repository.name.fl_str_mv |
Revista Eletrônica em Gestão Educação e Tecnologia Ambiental (REGET) - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
marcelobdarosa@gmail.com||reget.ufsm@gmail.com |
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1799950577420992512 |