|
|
Registro Completo |
Biblioteca(s): |
Embrapa Pecuária Sudeste. |
Data corrente: |
18/08/2008 |
Data da última atualização: |
07/03/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MATOS, W. O.; NÓBREGA, J. de A.; SOUZA, G. B. de; NOGUEIRA, A. R. de A. |
Afiliação: |
Wladiana Oliveira Matos, UFSCar; Joaquim de Araújo Nóbrega, USFCar/SÃO CARLOS, SP.; GILBERTO BATISTA DE SOUZA, CPPSE; ANA RITA DE ARAUJO NOGUEIRA, CPPSE. |
Título: |
Especiação redox de cromo em solo acidentalmente contaminado com solução sulfocrômica. |
Ano de publicação: |
2008 |
Fonte/Imprenta: |
Química Nova, v. 31, n. 6, p. 1450-1454, 2008. |
DOI: |
10.1590/S0100-40422008000600032 |
Idioma: |
Português |
Conteúdo: |
Determination of Cr(VI) and Cr(III) was studied in soil samples accidentally contaminated with sulphochromic solution. Molecular absorption spectrophotometry based on the diphenylcarbazide method was used for the determination of Cr(VI) after its alkaline extraction. The total chromium concentration was determined using ICP OES. The quantification of Cr(III) was accomplished by subtracting the Cr(VI) concentration from the total chromium concentration. Regardless of the known contamination of the soil samples by sulphochromic solution, concentrations of Cr(VI) were below the detection limit. Addition and recovery experiments for Cr(VI) in soil samples with and without organic matter indicated its influence on the reduction of Cr(VI) to Cr(III). |
Palavras-Chave: |
Chromium Redox; Speciation. |
Thesagro: |
Solo. |
Categoria do assunto: |
W Química e Física |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/40871/1/PROCIGBS2008.00050.pdf
|
Marc: |
LEADER 01375naa a2200205 a 4500 001 1048502 005 2023-03-07 008 2008 bl uuuu u00u1 u #d 024 7 $a10.1590/S0100-40422008000600032$2DOI 100 1 $aMATOS, W. O. 245 $aEspeciação redox de cromo em solo acidentalmente contaminado com solução sulfocrômica.$h[electronic resource] 260 $c2008 520 $aDetermination of Cr(VI) and Cr(III) was studied in soil samples accidentally contaminated with sulphochromic solution. Molecular absorption spectrophotometry based on the diphenylcarbazide method was used for the determination of Cr(VI) after its alkaline extraction. The total chromium concentration was determined using ICP OES. The quantification of Cr(III) was accomplished by subtracting the Cr(VI) concentration from the total chromium concentration. Regardless of the known contamination of the soil samples by sulphochromic solution, concentrations of Cr(VI) were below the detection limit. Addition and recovery experiments for Cr(VI) in soil samples with and without organic matter indicated its influence on the reduction of Cr(VI) to Cr(III). 650 $aSolo 653 $aChromium Redox 653 $aSpeciation 700 1 $aNÓBREGA, J. de A. 700 1 $aSOUZA, G. B. de 700 1 $aNOGUEIRA, A. R. de A. 773 $tQuímica Nova$gv. 31, n. 6, p. 1450-1454, 2008.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
Registro Completo
Biblioteca(s): |
Embrapa Amazônia Ocidental. |
Data corrente: |
02/08/2018 |
Data da última atualização: |
19/05/2022 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
FELDMANN, F.; PREISINGER, H.; GASPAROTTO, L.; LIEBEREI, R. |
Afiliação: |
LUADIR GASPAROTTO, CPAA. |
Título: |
The environmental changes during field preparation in Amazonas require an ecologically adapted agricultural production system to reach economical stability. |
Ano de publicação: |
1993 |
Fonte/Imprenta: |
In: SHIFT PROJEKT ENV-23. Rekultivierung degradierter, brachliegender monokulturflächen in ausgewogene mischkulturflächen unter besonderer berücksichtigung bodenbiologischer faktoren. Manaus: EMBRAPA-CPAA; Hamburg: Universität Hamburg, 1993. |
Páginas: |
p. 84 |
Idioma: |
Inglês |
Notas: |
D26. |
Thesagro: |
Produção Agrícola. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/189399/1/Abstracts-pag-84.pdf
|
Marc: |
LEADER 00756nam a2200169 a 4500 001 2093810 005 2022-05-19 008 1993 bl uuuu u00u1 u #d 100 1 $aFELDMANN, F. 245 $aThe environmental changes during field preparation in Amazonas require an ecologically adapted agricultural production system to reach economical stability. 260 $aIn: SHIFT PROJEKT ENV-23. Rekultivierung degradierter, brachliegender monokulturflächen in ausgewogene mischkulturflächen unter besonderer berücksichtigung bodenbiologischer faktoren. Manaus: EMBRAPA-CPAA; Hamburg: Universität Hamburg$c1993 300 $ap. 84 500 $aD26. 650 $aProdução Agrícola 700 1 $aPREISINGER, H. 700 1 $aGASPAROTTO, L. 700 1 $aLIEBEREI, R.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Amazônia Ocidental (CPAA) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Expressão de busca inválida. Verifique!!! |
|
|