| |
|
|
| Registros recuperados : 14 | |
| 3. |  | SÁ, I. P.; BANHOS, S.; ANDRADE, M. S.; NHAMUE, P. F.; NOGUEIRA, A. R. de A. Chemical speciation of hexavalent chromium in organic fertilizer by LC-ICP-MS and spectrophotometry. In: BRAZILIAN MEETING ON CHEMICAL SPECIATION, 7.; RIO SYMPOSIUM ON ATOMIC SPECTROMETRY, 16., 2023, Bento Gonçalves, RS. Abstracts... 2023.| Biblioteca(s): Embrapa Pecuária Sudeste. |
|    |
| 6. | | SÁ, Í. P.; SOUZA, G. B. de; NOGUEIRA, A. R. de A. Especiação de Cr(VI) em fertilizantes orgânicos por meio da extração em ponto nuvem e otimização através do planejamento experimental Doehlert. In: ENCONTRO NACIONAL DE QUÍMICA ANALÍTICA, 19., 2018, Caldas Novas, GO; CONGRESSO IBEROAMERICANO DE QUÍMICA ANALÍTICA, 7., Caldas Novas, GO. Anais... Caldas Novas,GO: ENQA; CIAQA, 2018. p.667.| Biblioteca(s): Embrapa Pecuária Sudeste. |
| |
| 7. | | LANDGRAFF, R. L.; MARCANO DE HIGUERA, J.; SÁ, I. P. DE; NOGUEIRA, A. R. de A. Determinação de Al, Ba, Cd, Cr, Cu, Fe, Sr e Ti em velas do tipo estrela empregando planejamento Box-Behnken. In: JORNADA CIENTÍFICA DA EMBRAPA SÃO CARLOS, 12., 2020, São Carlos, SP. Anais... São Carlos, SP: Embrapa Instrumentação; Embrapa Pecuária Sudeste, 2020. p.52. (Embrapa Instrumentação. Documentos, 71).| Biblioteca(s): Embrapa Pecuária Sudeste. |
| |
| 8. | | MARCANO DE HIGUERA, J.; SÁ, I. P. DE; LANDGRAFF, R. L.; NOGUEIRA, A. R. de A. Determination of Al, Ba, Cd, Cr, Cu, Fe, Sr, and Ti in Sparkler Candles by MIP OES. Food Analytical Methods, p. 317-329, 2021.| Biblioteca(s): Embrapa Pecuária Sudeste. |
|  |
| 12. | | COELHO, T. L. S.; SILVA, D. S. N.; SOUZA FILHO, L. B. DE; ROCHA, J. M.; MARCANO DE HIGUERA, J.; SÁ, I. P. DE; GAMELA, R. R.; NOGUEIRA, A. R. de A.; LOPES JÚNIOR, C. A.; VIEIRA, E. C. High enhancement of macro and micronutrients quantification in Cajuína by ICP OES using ultrasound and multivariate analysis. Food Chemistry Advances, v. 2, 2023. 8 p.| Biblioteca(s): Embrapa Pecuária Sudeste. |
| |
| 13. | | SILVA, F. L. F. da; ANDRADE NETO, D. M.; MENEZES, F. L. de; SÁ, I. P. de; MARCANO DE HIGUERA, J.; FECHINE, P. B. A; COSTA, L. S. da; NOGUEIRA, A. R. de A.; LOPES. G. S; MATOS, W. O. Non-chromatographic arsenic speciation analyses in wild shrimp (Farfantepenaeus brasiliensis) using functionalized magnetic iron-nanoparticles. Food Chemistry, v.345, 2021, 128781. 9 p.| Biblioteca(s): Embrapa Pecuária Sudeste. |
| |
| 14. | | SANTOS, J. V. DOS; GORANOV, A. I.; BENTO, L. R.; OLIVEIRA, P. P. A.; PEZZOPANE, J. R. M.; BERNARDI, A. C. de C.; SÁ, I. P. DE; NOGUEIRA, A. R. de A.; MARTIN NETO, L.; HATCHER, P. G. Biogeochemistry of dissolved organic matter and inorganic solutes in soil profiles of tropical pasturelands. Soil and Tillage Research, v. 240, Aug. 2024, 106100. 15 p.| Biblioteca(s): Embrapa Pecuária Sudeste. |
| |
| Registros recuperados : 14 | |
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Pecuária Sudeste. |
|
Data corrente: |
03/12/2020 |
|
Data da última atualização: |
03/12/2020 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 1 |
|
Autoria: |
MOREIRA, L. S.; SÁ, I. P.; MACHADO, R. C.; NOGUEIRA, A. R. de A.; SILVA, E. G. P. da; AMARAL, C. D. B. |
|
Afiliação: |
Luana S. Moreira, UFPR; Ívero P. Sá, UFSCAR; Raquel Cardoso Machado, UFSCAR; ANA RITA DE ARAUJO NOGUEIRA, CPPSE; Erik G. P. da Silva, UNIVERSIDADE DO ESTADO SANTA CRUZ; Clarice D. B. Amaral, UFPR. |
|
Título: |
Coprecipitation magnesium(II) hydroxide as a strategy of pre-concentration for trace elemental determination by microwave-induced plasma optical emission spectrometry. |
|
Ano de publicação: |
2020 |
|
Fonte/Imprenta: |
Spectrochimica Acta Part B, v. 169, 105899, jul. 2020. |
|
DOI: |
https://doi.org/10.1016/j.sab.2020.105899 |
|
Idioma: |
Inglês |
|
Conteúdo: |
In this work, a method employing coprecipitation procedure with magnesium hydroxide as a carrier for separation/preconcentration of arsenic(V), cadmium(II), chromium(III), cobalt(II), copper(II), manganese(VII), mercury(II), nickel(II), and vanadium(V) was developed. The method was applied in fish and shellfish samples, and the elements were determined by microwave-induced plasma optical emission spectrometry (MIP OES). Complete two-level factorial design for four variables and a mixture design were employed to evaluate and optimize the factors involved in this system. Under optimized conditions, the accuracy of the procedure was assessed using certified reference material, obtaining recoveries of 92 to 105% for the elements studied. The proposed method presented the detection limits in the range of 0.01?0.33 ?g g?1, and enrichment factors of 5; 17; 6; 25; 24; 25; 25; 25; and 13 for the analytes As5+, Cd2+, Cr3+, Co2+, Cu2+, Mn7+, Hg2+, Ni2+, and V5+, respectively. The applied chemometric tools were effective to optimize the important variables involved in the developed coprecipitation route. The proposed method presented simplicity, low cost, high sensitivity, allowing the determination of the analytes by MIP OES. |
|
Palavras-Chave: |
Fish samples; Mg(OH)2; MIP OES; Multivariate optimization; Nitrogen plasma; Sample preparation. |
|
Categoria do assunto: |
W Química e Física |
|
Marc: |
LEADER 02116naa a2200265 a 4500
001 2127532
005 2020-12-03
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.sab.2020.105899$2DOI
100 1 $aMOREIRA, L. S.
245 $aCoprecipitation magnesium(II) hydroxide as a strategy of pre-concentration for trace elemental determination by microwave-induced plasma optical emission spectrometry.$h[electronic resource]
260 $c2020
520 $aIn this work, a method employing coprecipitation procedure with magnesium hydroxide as a carrier for separation/preconcentration of arsenic(V), cadmium(II), chromium(III), cobalt(II), copper(II), manganese(VII), mercury(II), nickel(II), and vanadium(V) was developed. The method was applied in fish and shellfish samples, and the elements were determined by microwave-induced plasma optical emission spectrometry (MIP OES). Complete two-level factorial design for four variables and a mixture design were employed to evaluate and optimize the factors involved in this system. Under optimized conditions, the accuracy of the procedure was assessed using certified reference material, obtaining recoveries of 92 to 105% for the elements studied. The proposed method presented the detection limits in the range of 0.01?0.33 ?g g?1, and enrichment factors of 5; 17; 6; 25; 24; 25; 25; 25; and 13 for the analytes As5+, Cd2+, Cr3+, Co2+, Cu2+, Mn7+, Hg2+, Ni2+, and V5+, respectively. The applied chemometric tools were effective to optimize the important variables involved in the developed coprecipitation route. The proposed method presented simplicity, low cost, high sensitivity, allowing the determination of the analytes by MIP OES.
653 $aFish samples
653 $aMg(OH)2
653 $aMIP OES
653 $aMultivariate optimization
653 $aNitrogen plasma
653 $aSample preparation
700 1 $aSÁ, I. P.
700 1 $aMACHADO, R. C.
700 1 $aNOGUEIRA, A. R. de A.
700 1 $aSILVA, E. G. P. da
700 1 $aAMARAL, C. D. B.
773 $tSpectrochimica Acta Part B$gv. 169, 105899, jul. 2020.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
