Effect of NaCl and HCl concentrations on primary pH measurement for the certification of standard materials
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional do INMETRO |
Texto Completo: | http://hdl.handle.net/10926/1599 |
Resumo: | pH is an important parameter to control the production of food, medicine, petrochemical products and others. Thus, standard reference materials used to calibrate pH meters are necessary to guarantee reliability of the measurements. The Chemical Metrology Division (Dquim) of the National Metrology Institute of Brazil (Inmetro) has as one of its missions the certification of standard reference materials. In the case of pH, it will be done by the pH primary measurement system of Inmetro, in operation at Dquim since 2003. The buffer solution of nominal pH value equal to 6.865 will be the first to be certified. The study of some measurement parameters has already been accomplished, and will lead to the improvement of the primary pH measurement. In this paper, the effect of NaCl and HCl concentrations on the primary pH measurement is discussed, based on the results obtained by Inmetro in the regional comparison SIM 8.11P. |
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info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleEffect of NaCl and HCl concentrations on primary pH measurement for the certification of standard materials20062012-04-24T17:07:31Z2012-04-24T17:07:31ZpH is an important parameter to control the production of food, medicine, petrochemical products and others. Thus, standard reference materials used to calibrate pH meters are necessary to guarantee reliability of the measurements. The Chemical Metrology Division (Dquim) of the National Metrology Institute of Brazil (Inmetro) has as one of its missions the certification of standard reference materials. In the case of pH, it will be done by the pH primary measurement system of Inmetro, in operation at Dquim since 2003. The buffer solution of nominal pH value equal to 6.865 will be the first to be certified. The study of some measurement parameters has already been accomplished, and will lead to the improvement of the primary pH measurement. In this paper, the effect of NaCl and HCl concentrations on the primary pH measurement is discussed, based on the results obtained by Inmetro in the regional comparison SIM 8.11P.7 p. : il.Submitted by Regina Mello (mrmello@inmetro.gov.br) on 2012-03-16T16:51:41Z No. of bitstreams: 1 2006_SouzaOrdineFraga.pdf: 67711 bytes, checksum: 979fab1e930de9dfd15a1f4b1906d4f5 (MD5)Approved for entry into archive by Catarina Soares(cfsoares@inmetro.gov.br) on 2012-04-24T17:07:31Z (GMT) No. of bitstreams: 1 2006_SouzaOrdineFraga.pdf: 67711 bytes, checksum: 979fab1e930de9dfd15a1f4b1906d4f5 (MD5)Made available in DSpace on 2012-04-24T17:07:31Z (GMT). No. of bitstreams: 1 2006_SouzaOrdineFraga.pdf: 67711 bytes, checksum: 979fab1e930de9dfd15a1f4b1906d4f5 (MD5) Previous issue date: 2006enghttp://hdl.handle.net/10926/1599DMD_hdl_10926/1599SOUZA, V. et al. Effect of NaCl and HCl concentrations on primary pH measurement for the certification of standard materials. Brazilian Archives of Biology and Technology, v. 49, p. 79-85, 2006.Souza, Vanderléa deOrdine, Alberto PiresFraga, Isabel Cristina SertaGetrouw, Monique AudreyBorges, Paulo PaschoalDamasceno, Jailton CarreteiroCouto, Paulo Roberto Guimarãesinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional do INMETROinstname:Instituto Nacional de Metrologia, Qualidade e Tecnologia (INMETRO)instacron:INMETROSouza_2006.pdfhttp://xrepo01s.inmetro.gov.br/bitstream/10926/1599/1/Souza_2006.pdfapplication/pdf67711http://xrepo01s.inmetro.gov.br/bitstream/10926/1599/1/Souza_2006.pdf979fab1e930de9dfd15a1f4b1906d4f5MD510926_1599_1Souza_2006.pdf.txthttp://xrepo01s.inmetro.gov.br/bitstream/10926/1599/6/Souza_2006.pdf.txttext/plain20132http://xrepo01s.inmetro.gov.br/bitstream/10926/1599/6/Souza_2006.pdf.txtcc2853be5561a1d3aaab373b535c0eebMD510926_1599_62024-04-22T15:43:04Zoai:xrepo01s.inmetro.gov.br:10926/1599Repositório de Publicaçõeshttp://repositorios.inmetro.gov.br/oai/requestopendoar:2012-10-26T12:27:45Repositório Institucional do INMETRO - Instituto Nacional de Metrologia, Qualidade e Tecnologia (INMETRO)false |
dc.title.none.fl_str_mv |
Effect of NaCl and HCl concentrations on primary pH measurement for the certification of standard materials |
title |
Effect of NaCl and HCl concentrations on primary pH measurement for the certification of standard materials |
spellingShingle |
Effect of NaCl and HCl concentrations on primary pH measurement for the certification of standard materials Souza, Vanderléa de |
title_short |
Effect of NaCl and HCl concentrations on primary pH measurement for the certification of standard materials |
title_full |
Effect of NaCl and HCl concentrations on primary pH measurement for the certification of standard materials |
title_fullStr |
Effect of NaCl and HCl concentrations on primary pH measurement for the certification of standard materials |
title_full_unstemmed |
Effect of NaCl and HCl concentrations on primary pH measurement for the certification of standard materials |
title_sort |
Effect of NaCl and HCl concentrations on primary pH measurement for the certification of standard materials |
author |
Souza, Vanderléa de |
author_facet |
Souza, Vanderléa de Ordine, Alberto Pires Fraga, Isabel Cristina Serta Getrouw, Monique Audrey Borges, Paulo Paschoal Damasceno, Jailton Carreteiro Couto, Paulo Roberto Guimarães |
author_role |
author |
author2 |
Ordine, Alberto Pires Fraga, Isabel Cristina Serta Getrouw, Monique Audrey Borges, Paulo Paschoal Damasceno, Jailton Carreteiro Couto, Paulo Roberto Guimarães |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Souza, Vanderléa de Ordine, Alberto Pires Fraga, Isabel Cristina Serta Getrouw, Monique Audrey Borges, Paulo Paschoal Damasceno, Jailton Carreteiro Couto, Paulo Roberto Guimarães |
description |
pH is an important parameter to control the production of food, medicine, petrochemical products and others. Thus, standard reference materials used to calibrate pH meters are necessary to guarantee reliability of the measurements. The Chemical Metrology Division (Dquim) of the National Metrology Institute of Brazil (Inmetro) has as one of its missions the certification of standard reference materials. In the case of pH, it will be done by the pH primary measurement system of Inmetro, in operation at Dquim since 2003. The buffer solution of nominal pH value equal to 6.865 will be the first to be certified. The study of some measurement parameters has already been accomplished, and will lead to the improvement of the primary pH measurement. In this paper, the effect of NaCl and HCl concentrations on the primary pH measurement is discussed, based on the results obtained by Inmetro in the regional comparison SIM 8.11P. |
publishDate |
2006 |
dc.date.issued.fl_str_mv |
2006 |
dc.date.available.fl_str_mv |
2012-04-24T17:07:31Z |
dc.date.accessioned.fl_str_mv |
2012-04-24T17:07:31Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10926/1599 DMD_hdl_10926/1599 |
dc.identifier.citation.fl_str_mv |
SOUZA, V. et al. Effect of NaCl and HCl concentrations on primary pH measurement for the certification of standard materials. Brazilian Archives of Biology and Technology, v. 49, p. 79-85, 2006. |
url |
http://hdl.handle.net/10926/1599 |
identifier_str_mv |
DMD_hdl_10926/1599 SOUZA, V. et al. Effect of NaCl and HCl concentrations on primary pH measurement for the certification of standard materials. Brazilian Archives of Biology and Technology, v. 49, p. 79-85, 2006. |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
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info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.bitstream.fl_str_mv |
application/pdf text/plain |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional do INMETRO instname:Instituto Nacional de Metrologia, Qualidade e Tecnologia (INMETRO) instacron:INMETRO |
instname_str |
Instituto Nacional de Metrologia, Qualidade e Tecnologia (INMETRO) |
instacron_str |
INMETRO |
institution |
INMETRO |
reponame_str |
Repositório Institucional do INMETRO |
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Repositório Institucional do INMETRO |
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Repositório Institucional do INMETRO - Instituto Nacional de Metrologia, Qualidade e Tecnologia (INMETRO) |
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