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| Registros recuperados : 311 | |
| Registros recuperados : 311 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
15/01/2024 |
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Data da última atualização: |
15/01/2024 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
SOUZA, G. B.; BÓCOLI, D. A.; CARRARO, C. I.; NOGUEIRA, A. R. de A. |
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Afiliação: |
GILBERTO BATISTA DE SOUZA, SouzaGB Consultoria; D. A. BÓCOLI, Laboratório Exata; C. I. CARRARO, Covalente Consultoria Empresarial Eireli; ANA RITA DE ARAUJO NOGUEIRA, CPPSE. |
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Título: |
Determination of contaminants in samples of organic and inorganic raw materials and mineral mixture: collaborative study. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE METROLOGIA, 12., 2023, Petrópolis. Anais... [S.l]: Sociedade Brasileira de Metrologia: INMETRO, 2023. |
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Páginas: |
6 p. |
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Idioma: |
Inglês |
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Conteúdo: |
An inter-laboratory comparison was running focused on determining As, Cd, Cr, Hg, and Se in raw materials and mineral mixture. The test materials were commercially available calcitic limestone, copper sulfate, premix mineral supplement, and sodium selenite, which were processed, bottled, labeled, and dispatched to participants, together with the details of the analytical procedure. The exercise enabled the establishment of an adequate analytical protocol for measuring undesirable trace elements in the evaluated matrices, defining the analytical precision parameters about repeatability (r) and reproducibility (R) in the laboratory results. Regarding the Hg content, it was not possible to establish the precision parameters since the mass fraction for that measurand was below the limit of detection of the method used. |
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Palavras-Chave: |
Analytical precision parameters; Analytical protocol; Determination of inorganic contaminants; Interlaboratory collaborative study. |
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Thesaurus NAL: |
Repeatability; Reproducibility. |
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Categoria do assunto: |
W Química e Física |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1160804/1/DeterminationContaminantsSamples.pdf
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Marc: |
LEADER 01676nam a2200229 a 4500
001 2160804
005 2024-01-15
008 2023 bl uuuu u00u1 u #d
100 1 $aSOUZA, G. B.
245 $aDetermination of contaminants in samples of organic and inorganic raw materials and mineral mixture$bcollaborative study.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE METROLOGIA, 12., 2023, Petrópolis. Anais... [S.l]: Sociedade Brasileira de Metrologia: INMETRO$c2023
300 $a6 p.
520 $aAn inter-laboratory comparison was running focused on determining As, Cd, Cr, Hg, and Se in raw materials and mineral mixture. The test materials were commercially available calcitic limestone, copper sulfate, premix mineral supplement, and sodium selenite, which were processed, bottled, labeled, and dispatched to participants, together with the details of the analytical procedure. The exercise enabled the establishment of an adequate analytical protocol for measuring undesirable trace elements in the evaluated matrices, defining the analytical precision parameters about repeatability (r) and reproducibility (R) in the laboratory results. Regarding the Hg content, it was not possible to establish the precision parameters since the mass fraction for that measurand was below the limit of detection of the method used.
650 $aRepeatability
650 $aReproducibility
653 $aAnalytical precision parameters
653 $aAnalytical protocol
653 $aDetermination of inorganic contaminants
653 $aInterlaboratory collaborative study
700 1 $aBÓCOLI, D. A.
700 1 $aCARRARO, C. I.
700 1 $aNOGUEIRA, A. R. de A.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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