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Registros recuperados : 17 | |
3. | | PERIN, E. C.; TORRES, D. P.; BECKER, S.; ROMBALDI, C. V.; SILVEIRA, C. A. P. Planejamento fatorial fracionário para desenvolvimento de método analítico para posterior determinação de arsênio e selênio por gf aas em solos submetidos a remineralizadores de solo. In: CONGRESSO BRASILEIRO DE ROCHAGEM, 3., 2017, Pelotas. Anais... Assis: Triunfal Gráfica e Editora, 2017. 455 p. Editado por Adilson Luis Banberg, Carlos Augusto Posser Silveira, Éder de Souza Martins, Magda Bergmann, Rosane Martinazzo e Suzi Huff Theodoro. p. 45-49 Biblioteca(s): Embrapa Clima Temperado. |
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7. | | KLEEMANN, N.; TORRES, D. P.; RIBEIRO, A. S.; BAMBERG, A. L. Cold finger with semi closed reflux system for sample preparation aiming at Al, Ca, Cr, Cu, Fe, K, Mg, Mn, Ni, V and Zn determination in Drinking Water Treatment Sludge by MIP OES. Analytica Chimica Acta, v. 1096, p. 9-17, Feb. 2020. Biblioteca(s): Embrapa Clima Temperado. |
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10. | | BALDEZ, D. L.; AVILA, L. O.; TORRES, D. P.; MARTINAZZO, R.; SILVEIRA, C. A. P.; VIEIRA, M. A. Determinação de potássio em rochas silicáticas por espectrometria de emissão atômica com chama após dissolução assistida por ultrassom. Quimica Nova, v. 42, n. 10, p. 1095-1100, 2018. Biblioteca(s): Embrapa Clima Temperado. |
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12. | | PANIZ, F. P.; PEDRON, T.; FREIRE, B. M.; TORRES, D. P.; SILVA, F. F.; BATISTA, B. L. Effective procedures for the determination of As, Cd, Cu, Fe, Hg, Mg, Mn, Ni, Pb, Se, Th, Zn, U and rare earth elements in plants and foodstuffs. Analytical Methods, v. 10, p. 4094-4103, 2018. Biblioteca(s): Embrapa Clima Temperado. |
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13. | | BALDEZ, D. L.; AVILA, L. O.; LISBOA, M. T.; TORRES, D. P.; MARTINAZZO, R.; SILVEIRA, C. A. P.; VIEIRA, M. A. Determinação de K em rochas silicáticas digeridas em ultrassom. In: ENCONTRO DE QUÍMICA DA REGIÃO SUL, 24., 2017, Florianópolis. Anais... Florianópolis: SBQ, 2017. Biblioteca(s): Embrapa Clima Temperado. |
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14. | | AVILA, L. O. de; TORRES, D. P.; ORESTE, E. Q.; LISBOA, M. T.; SILVEIRA, C. A. P.; RIBEIRO, A. S.; NUNES, A. M.; MARTINAZZO, R. Speciation of Inorganic Arsenic in Retorted Oil Shale Slurry by Hydride Generation Atomic Absorption Spectrometry (HG AAS) after Ultrasound-Assisted Acid Extraction. Analytical Letters, v. 57, n. 7, p. 1065-1077, 2024. Biblioteca(s): Embrapa Clima Temperado; Embrapa Instrumentação. |
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15. | | NUNES, R. S. G.; VIEIRA, F. C. B.; MARTINAZZO, R.; BAMBERG, A. L.; SILVEIRA, C. A. P.; TORRES, D. P.; FIGUEIREDO, M. C. dos S. The use of retorted oil shale as urea coating does not modify chemical parameters of free-drained soil solution. Research, Society and Development, v. 11, n. 9, e7811931521, 2022. Biblioteca(s): Embrapa Clima Temperado; Embrapa Instrumentação. |
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16. | | BAMBERG, A. L.; CAMPOS, A. D.; SILVEIRA, C. A. P.; MARTINS, C. R.; GOMES, C. B.; TORRES, D. P.; ANTHONISEN, D. G.; NAVA, D. E.; NACHTIGAL, G. de F.; HEIDEN, G.; SCHIEDECK, G.; MATTOS, M. L. T.; MARTINAZZO, R. I Plano Diretor do Núcleo de Insumos 2018-2028. Pelotas: Embrapa Clima Temperado, 2018. 23 p. (Embrapa Clima Temperado. Documentos, 454.) Biblioteca(s): Embrapa Clima Temperado. |
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17. | | SILVA, J. T. da; PANIZ, F. P.; SANCHEZ, F. e. S.; PEDRON, T.; TORRES, D. P.; CONCENÇO, F. I. G. da R.; PARFITT, J. M. B.; BATISTA, B. L. Selected soil water tensions at phenological phases and mineral content of trace elements in rice grains - mitigating arsenic by water management. Agricultural Water Management, v. 228, n. 20, Feb. 2020, 105884. Biblioteca(s): Embrapa Clima Temperado. |
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Registros recuperados : 17 | |
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Registro Completo
Biblioteca(s): |
Embrapa Clima Temperado. |
Data corrente: |
11/06/2015 |
Data da última atualização: |
15/06/2015 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 1 |
Autoria: |
TORRES, D. P.; MARTINS-TEIXEIRA, M. B.; CADORE, S.; QUEIROZ, H. M. |
Afiliação: |
DAIANE PLACIDO TORRES, CPACT; MARISTELA BRAGA MARTINS-TEIXEIRA, Laboratório Nacional Agropecuário; SOLANGE CADORE, Universidade de Campinas; HELENA MÜLLER QUEIROZ, Laboratório Nacional Agropecuário. |
Título: |
Method validation for control determination of mercury in fresh fish and shrimp samples by solid sampling thermal decomposition/amalgamation atomic absorption spectrometry. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
Journal of Environmental Science and Health, Part B, v. 50, p. 514-522, 2015. |
ISSN: |
1532-4109 |
DOI: |
10.1080/03601234.2015.1018764 |
Idioma: |
Inglês |
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 |
Palavras-Chave: |
Method validation. |
Thesagro: |
Mercúrio. |
Thesaurus NAL: |
mercury. |
Categoria do assunto: |
-- |
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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