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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
17/05/2012 |
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Data da última atualização: |
17/05/2012 |
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Autoria: |
VEIGA, F. de M. |
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Título: |
Ensaio de espaçamento de cana-de-açúcar. |
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Ano de publicação: |
1950 |
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Fonte/Imprenta: |
Rio de Janeiro: Serviço Nacional de Pesquisa Agronômicas, 1950. |
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Páginas: |
90 p. |
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Série: |
(SNPA. Boletim, 2). |
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Idioma: |
Português |
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Conteúdo: |
Ensaio de espaçamento de cana-de-açúcar; Problemas de estatística experimental. |
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Palavras-Chave: |
Cana-de-açúcar; Sugar cane. |
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Thesagro: |
Espaçamento. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00542nam a2200169 a 4500
001 1924762
005 2012-05-17
008 1950 bl uuuu u0uu1 u #d
100 1 $aVEIGA, F. de M.
245 $aEnsaio de espaçamento de cana-de-açúcar.
260 $aRio de Janeiro: Serviço Nacional de Pesquisa Agronômicas$c1950
300 $a90 p.
490 $a(SNPA. Boletim, 2).
520 $aEnsaio de espaçamento de cana-de-açúcar; Problemas de estatística experimental.
650 $aEspaçamento
653 $aCana-de-açúcar
653 $aSugar cane
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Registro original: |
Embrapa Semiárido (CPATSA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
13/08/2007 |
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Data da última atualização: |
08/03/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
ARAÚJO, G. C. L.; LEMOS, S. G.; FERREIRA, A. G.; FREITAS, H.; NOGUEIRA, A. R. de A. |
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Afiliação: |
G. C. L. ARAÚJO, UFSCar; SERLAN G. LEMOS, UFSCar; ANTONIO GILBERTO FERREIRA, UFSCar; H. FREITAS, UFSCar; ANA RITA DE ARAUJO NOGUEIRA, CPPSE. |
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Título: |
Effect of pre-treatment and supporting media on Ni(II), Cu(II), Al(III) and Fe(III) sorption by plant root material. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Chemosphere, v. 68, n. 3, p. 537-545, jun. 2007. |
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DOI: |
10.1016/j.chemosphere.2006.12.054 |
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Idioma: |
Inglês |
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Conteúdo: |
In this work Paspalum notatum root material was used to elucidate the influence of acid leaching pre-treatment and of sorption medium on metal adsorption. Ground P. notatum root was leached with 0.14 M HNO3. Leached root material (LRM) and non-leached root material (NLRM) were employed to flow sorption of Ni(II), Cu(II), Al(III) and Fe(III) in 0.5 M CH3COONH4 medium at pH 6.5. For LRM the sorption was also studied in 0.5 M KNO3 medium. The acid pre-treatment increased the sorption capacity (SC) for all ions studied. For the KNO3 medium, Cu(II) and Fe(III) sorption was higher than in CH3COONH4 and the type of the Ni(II) isotherm?s model changed. The Freundlich model was the most representative isotherm model to describe metallic ions sorption. The 1H NMR spectra showed differences between LRM and NLRM and the acid-basic potentiometric titration elucidated that acid-leaching procedure affected the root material sorption sites once only two predominant sorption sites were found for LRM (phenolic and amine, both able cations sorption) and five sorption sites (two carboxylic, amine and two phenolic) were founded for NLRM. |
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Palavras-Chave: |
Pre treatment effect; Sorption sites investigation; Supporting media. |
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Thesaurus NAL: |
biosorption. |
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Categoria do assunto: |
W Química e Física |
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Marc: |
LEADER 01874naa a2200229 a 4500
001 1032566
005 2023-03-08
008 2007 bl uuuu u00u1 u #d
024 7 $a10.1016/j.chemosphere.2006.12.054$2DOI
100 1 $aARAÚJO, G. C. L.
245 $aEffect of pre-treatment and supporting media on Ni(II), Cu(II), Al(III) and Fe(III) sorption by plant root material.$h[electronic resource]
260 $c2007
520 $aIn this work Paspalum notatum root material was used to elucidate the influence of acid leaching pre-treatment and of sorption medium on metal adsorption. Ground P. notatum root was leached with 0.14 M HNO3. Leached root material (LRM) and non-leached root material (NLRM) were employed to flow sorption of Ni(II), Cu(II), Al(III) and Fe(III) in 0.5 M CH3COONH4 medium at pH 6.5. For LRM the sorption was also studied in 0.5 M KNO3 medium. The acid pre-treatment increased the sorption capacity (SC) for all ions studied. For the KNO3 medium, Cu(II) and Fe(III) sorption was higher than in CH3COONH4 and the type of the Ni(II) isotherm?s model changed. The Freundlich model was the most representative isotherm model to describe metallic ions sorption. The 1H NMR spectra showed differences between LRM and NLRM and the acid-basic potentiometric titration elucidated that acid-leaching procedure affected the root material sorption sites once only two predominant sorption sites were found for LRM (phenolic and amine, both able cations sorption) and five sorption sites (two carboxylic, amine and two phenolic) were founded for NLRM.
650 $abiosorption
653 $aPre treatment effect
653 $aSorption sites investigation
653 $aSupporting media
700 1 $aLEMOS, S. G.
700 1 $aFERREIRA, A. G.
700 1 $aFREITAS, H.
700 1 $aNOGUEIRA, A. R. de A.
773 $tChemosphere$gv. 68, n. 3, p. 537-545, jun. 2007.
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