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 | Acesso ao texto completo restrito à biblioteca da Embrapa Clima Temperado. Para informações adicionais entre em contato com cpact.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Clima Temperado. |
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Data corrente: |
11/06/2015 |
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Data da última atualização: |
15/06/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
TORRES, D. P.; MARTINS-TEIXEIRA, M. B.; CADORE, S.; QUEIROZ, H. M. |
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Afiliação: |
DAIANE PLACIDO TORRES, CPACT; MARISTELA BRAGA MARTINS-TEIXEIRA, Laboratório Nacional Agropecuário; SOLANGE CADORE, Universidade de Campinas; HELENA MÜLLER QUEIROZ, Laboratório Nacional Agropecuário. |
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Título: |
Method validation for control determination of mercury in fresh fish and shrimp samples by solid sampling thermal decomposition/amalgamation atomic absorption spectrometry. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Journal of Environmental Science and Health, Part B, v. 50, p. 514-522, 2015. |
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ISSN: |
1532-4109 |
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DOI: |
10.1080/03601234.2015.1018764 |
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Idioma: |
Inglês |
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Conteúdo: |
A method for the determination of total mercury in fresh fish and shrimp samples by solid sampling thermal decomposition/amalgamation atomic absorption spectrometry (TDA AAS) has been validated following international foodstuff protocols in order to fulfill the Brazilian National Residue Control Plan. The experimental parameters have been previously studied and optimizedaccording to specific legislation on validation and inorganic contaminants in foodstuff. Linearity, sensitivity, specificity, detection and quantification limits, precision (repeatability and within-laboratory reproducibility), robustness as well as accuracy of the method have been evaluated. Linearity of response was satisfactory for the two range concentrations available on the TDA AAS equipment, between approximately 25.0 and 200.0 mg kg¡1 (square regression) and 250.0 and 2000.0 mg kg¡1 (linear regression) of mercury. The residues for both ranges were homoscedastic and independent, with normal distribution. Correlation coefficients obtained for these ranges were higher than 0.995. Limits of quantification (LOQ) and of detection of the method (LDM), based on signal standard deviation (SD) for a low-in-mercury sample, were 3.0 and 1.0 mg kg¡1, respectively. Repeatability of the method was better than 4%. Within-laboratory reproducibility achieved a relative SD better than 6%. Robustness of the current method was evaluated and pointed sample mass as a significant factor. Accuracy (assessed as the analyte recovery) was calculated on basis of the repeatability, and ranged from 89% to 99%. The obtained results showed the suitability of the present method for direct mercury measurement in fresh fish and shrimp samples and the importance of monitoring the analysis conditions for food control purposes. Additionally, the competence of this method was recognized by accreditation under the standard ISO/IEC 17025. MenosA method for the determination of total mercury in fresh fish and shrimp samples by solid sampling thermal decomposition/amalgamation atomic absorption spectrometry (TDA AAS) has been validated following international foodstuff protocols in order to fulfill the Brazilian National Residue Control Plan. The experimental parameters have been previously studied and optimizedaccording to specific legislation on validation and inorganic contaminants in foodstuff. Linearity, sensitivity, specificity, detection and quantification limits, precision (repeatability and within-laboratory reproducibility), robustness as well as accuracy of the method have been evaluated. Linearity of response was satisfactory for the two range concentrations available on the TDA AAS equipment, between approximately 25.0 and 200.0 mg kg¡1 (square regression) and 250.0 and 2000.0 mg kg¡1 (linear regression) of mercury. The residues for both ranges were homoscedastic and independent, with normal distribution. Correlation coefficients obtained for these ranges were higher than 0.995. Limits of quantification (LOQ) and of detection of the method (LDM), based on signal standard deviation (SD) for a low-in-mercury sample, were 3.0 and 1.0 mg kg¡1, respectively. Repeatability of the method was better than 4%. Within-laboratory reproducibility achieved a relative SD better than 6%. Robustness of the current method was evaluated and pointed sample mass as a significant factor. Accuracy (assessed as the analyte rec... Mostrar Tudo |
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Palavras-Chave: |
Method validation. |
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Thesagro: |
Mercúrio. |
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Thesaurus Nal: |
mercury. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02661naa a2200217 a 4500
001 2017377
005 2015-06-15
008 2015 bl uuuu u00u1 u #d
022 $a1532-4109
024 7 $a10.1080/03601234.2015.1018764$2DOI
100 1 $aTORRES, D. P.
245 $aMethod validation for control determination of mercury in fresh fish and shrimp samples by solid sampling thermal decomposition/amalgamation atomic absorption spectrometry.$h[electronic resource]
260 $c2015
520 $aA method for the determination of total mercury in fresh fish and shrimp samples by solid sampling thermal decomposition/amalgamation atomic absorption spectrometry (TDA AAS) has been validated following international foodstuff protocols in order to fulfill the Brazilian National Residue Control Plan. The experimental parameters have been previously studied and optimizedaccording to specific legislation on validation and inorganic contaminants in foodstuff. Linearity, sensitivity, specificity, detection and quantification limits, precision (repeatability and within-laboratory reproducibility), robustness as well as accuracy of the method have been evaluated. Linearity of response was satisfactory for the two range concentrations available on the TDA AAS equipment, between approximately 25.0 and 200.0 mg kg¡1 (square regression) and 250.0 and 2000.0 mg kg¡1 (linear regression) of mercury. The residues for both ranges were homoscedastic and independent, with normal distribution. Correlation coefficients obtained for these ranges were higher than 0.995. Limits of quantification (LOQ) and of detection of the method (LDM), based on signal standard deviation (SD) for a low-in-mercury sample, were 3.0 and 1.0 mg kg¡1, respectively. Repeatability of the method was better than 4%. Within-laboratory reproducibility achieved a relative SD better than 6%. Robustness of the current method was evaluated and pointed sample mass as a significant factor. Accuracy (assessed as the analyte recovery) was calculated on basis of the repeatability, and ranged from 89% to 99%. The obtained results showed the suitability of the present method for direct mercury measurement in fresh fish and shrimp samples and the importance of monitoring the analysis conditions for food control purposes. Additionally, the competence of this method was recognized by accreditation under the standard ISO/IEC 17025.
650 $amercury
650 $aMercúrio
653 $aMethod validation
700 1 $aMARTINS-TEIXEIRA, M. B.
700 1 $aCADORE, S.
700 1 $aQUEIROZ, H. M.
773 $tJournal of Environmental Science and Health, Part B$gv. 50, p. 514-522, 2015.
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Registro original: |
Embrapa Clima Temperado (CPACT) |
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| Registros recuperados : 11 | |
| 4. |  | TEIXEIRA, M. B.; LOSS, A.; ROSSI, C. Q.; PEREIRA, M. G.; POLIDORO, J. C.; PIMENTEL, C. Decomposição e liberação de nutrientes da fitomassa de plantas de milheto e sorgo. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 32., 2009, Fortaleza. O solo e a produção de bioenergia: perspectivas e desafios. [Viçosa, MG]: SBCS; Fortaleza: UFC, 2009. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Solos. |
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| 5. | | SANT`ANA, R. da S.; TEIXEIRA, M. B. T.; SOARES, T. M.; REIS, R. C.; RODRIGUES, T. P. Avaliação sensorial de rúcula cultivada em sistema hidropônico sob diferentes níveis de salinidade e disponibilidade de solução nutritiva. In: REUNIÃO ANUAL DE CIÊNCIA, TECNOLOGIA, INOVAÇÃO E CULTURA NO RECÔNCAVO DA BAHIA - RECITEC RECÔNCAVO. 1., 2011, Cruz das Almas. Anais... Cruz das Almas: Universidade Federal do Recôncavo da Bahia, 2011. 1 CD-ROM. 2 p. Em paralelo aconteceram também os seguintes eventos: V Seminário de Pesquisa do Recôncavo da Bahia; V Seminário Estudantil de Pesquisa da UFRB; V Seminário da Pós-Graduação da UFRB; II Seminário Regional de Pesquisa da EBDA; 5ª Jornada...| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 6. | | CAMARGO, P. L. T.; TEIXEIRA, M. B.; MARTINS JÚNIOR, P. P.; MADEIRA, F. A.; BESERRA, R. K. P. SIGS para a geração de mapas com a localização do baru (Dipteryx alata) na bacia hidrográfica do rio São Francisco, MG. Cadernos de Ciência & Tecnologia, v. 37, n. 2, e26679, 2020. Título em inglês: SIGS for generating maps with the location of the Baru (Dipteryx alata) in the hydrographic basin of the São Francisco river, MG.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 7. | | SILVA, E. C. da; MURAOKA, T.; BASTOS, A. V. S.; FRANZINI, V. I.; BUZETTI, B.; SOARES, F. A. L.; TEIXEIRA, M. B.; BENDASSOLLI, J. A. Biomass and nutrient accumulation by cover crops and upland rice grown in succession under no-tillage system as affected by nitrogen fertilizer rate. Journal of Crop Science and Biotechnology, v.23, n.2, p. 117-126, mar. 2020. 10 p.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 2 |
| Biblioteca(s): Embrapa Cocais. |
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| 8. | | ÁVILA, R. G.; MAGALHAES, P. C.; VITORINO, L. C.; BESSA, L. A.; SOUZA, K. R. D. de; QUEIROZ, R. B.; JAKELAITIS, A.; TEIXEIRA, M. B. Chitosan induces sorghum tolerance to water deficits by positively regulating photosynthesis and the production of primary metabolites, osmoregulators, and antioxidants. Journal of Soil Science and Plant Nutrition, v. 23, p. 1156–1172, 2023.| Tipo: Artigo em Periódico Indexado |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 9. | | VILLA, E. B.; CAMPOLIN, A. I.; FEIDEN, A.; OLIVEIRA NETO, S. N. de; MARINI, F. S.; LELES, P. S. dos S.; TEIXEIRA, M. B.; FONSECA, F. de A. Percepção dos agricultores familiares periurbanos de três municípios da baixada fluminense em relação aos recursos florestais. In: CONGRESSO BRASILEIRO DE AGROECOLOGIA, 4., 2006, Belo Horizonte. Construindo horizontes sustentáveis: anais. Belo Horizonte: Emater-MG, 2006. 1 CD-ROM. Não paginado.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Pantanal. |
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| 10. | | CONTRERAS ESPINAL, F. S.; SILVA, E. C. da; MURAOKA, T.; FRANZINI, V. I.; TRIVELIN, P. C. O.; TEIXEIRA, M. B.; SAKADEVAN, K. Utilization of nitrogen (15N) from urea and green manures by rice as affected by nitrogen fertilizer rate. African Journal of Agricultural Research, v. 11, n. 13, p. 1171-1180, Mar. 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 11. | | SILVA, E. C. da; MURAOKA, T.; BASTOS, A. V. S.; FRANZINI, V. I.; SILVA, A. da; BUZETTI, S.; SAKADEVAN, K.; SOARES, F. A. L.; TEIXEIRA, M. B.; TRIVELIN, P. C. O.; ARAÚJO, L. C. de. Nitrogen recovery from fertilizers and cover crops by maize crop under no-tillage system. Australian Journal of Crop Science, v.14, n.5, p. 766-774, 2020. 9 p.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Cocais. |
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| Registros recuperados : 11 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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