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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
22/12/1999 |
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Data da última atualização: |
02/03/2010 |
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Autoria: |
CRUVINEL, P. E.; NIELSEN, D. R.; CRESTANA, S.; FLOCCHINI, R. G.; MORALES, J. R.; MIRANDA, J.; KUSKO, B. |
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Afiliação: |
EMBRAPA-CNPDIA; University of California; Universidad de Chile; Universidad Nacional de Mexico. |
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Título: |
Studying the influence of the aggregate sizes on the trace elements of an ione oxisol with PIXE. |
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Ano de publicação: |
1991 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE CIENCIA DO SOLO, 23., jul. 1991, Porto Alegre, RS. Programa e resumos... Porto Alegre: Sociedade Brasileira de Ciencia do Solo, 1991. |
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Páginas: |
p.62. |
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Idioma: |
Inglês |
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Notas: |
Ref.018. |
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Conteúdo: |
The retention of certain trace elements through a saturated aggregated oxisol was studied under different aggregate sizes using the proton induced X-ray emission (PIXE) technique. This analytical technique is based on the ionization of the soil sample atoms by the incidence of a proton beam, and the subsequent emission of X-rays characteristic of the elements present in the sample. The number of X-rays photons of a given element provides information on the amount of this element, up to one part in 10E9. The results obtained show that an increase in aggregate size from < 0,5mm to 1,0 -4,7mm affected significatively the relative amounts of Cl,K, and Ca. The presence of Cl and Ca was greatest in the small aggregate fractions. The presence of K was greatest in the large aggregate fractions. These results, in particular for Cl and Ca, are indeed applicable and related to those obtained by Nkedi-Kizza. His miscible displacement techniques revealed that the transport and retention of Cl and Ca through a saturated aggregate oxisol were influenced by the size of the aggregates within the particular soil column studied. |
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Palavras-Chave: |
Aggregate; Influence; Ione; PIXE; Size. |
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Thesagro: |
Oxisol. |
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Thesaurus Nal: |
trace elements. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02006naa a2200301 a 4500
001 1026644
005 2010-03-02
008 1991 bl --- 0-- u #d
100 1 $aCRUVINEL, P. E.
245 $aStudying the influence of the aggregate sizes on the trace elements of an ione oxisol with PIXE.
260 $c1991
300 $ap.62.
500 $aRef.018.
520 $aThe retention of certain trace elements through a saturated aggregated oxisol was studied under different aggregate sizes using the proton induced X-ray emission (PIXE) technique. This analytical technique is based on the ionization of the soil sample atoms by the incidence of a proton beam, and the subsequent emission of X-rays characteristic of the elements present in the sample. The number of X-rays photons of a given element provides information on the amount of this element, up to one part in 10E9. The results obtained show that an increase in aggregate size from < 0,5mm to 1,0 -4,7mm affected significatively the relative amounts of Cl,K, and Ca. The presence of Cl and Ca was greatest in the small aggregate fractions. The presence of K was greatest in the large aggregate fractions. These results, in particular for Cl and Ca, are indeed applicable and related to those obtained by Nkedi-Kizza. His miscible displacement techniques revealed that the transport and retention of Cl and Ca through a saturated aggregate oxisol were influenced by the size of the aggregates within the particular soil column studied.
650 $atrace elements
650 $aOxisol
653 $aAggregate
653 $aInfluence
653 $aIone
653 $aPIXE
653 $aSize
700 1 $aNIELSEN, D. R.
700 1 $aCRESTANA, S.
700 1 $aFLOCCHINI, R. G.
700 1 $aMORALES, J. R.
700 1 $aMIRANDA, J.
700 1 $aKUSKO, B.
773 $tIn: CONGRESSO BRASILEIRO DE CIENCIA DO SOLO, 23., jul. 1991, Porto Alegre, RS. Programa e resumos... Porto Alegre: Sociedade Brasileira de Ciencia do Solo, 1991.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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| Registros recuperados : 11 | |
| 9. |  | MARTIN-NETO, L.; CRUVINEL, P. E.; MATTOSO, L. H. C.; COLNAGO, L. A.; FLOCCHINI, R. G.; SPOSITO, G. Espectroscopias de infravermelho, ultravioleta-visível e PIXE: alguns resultados disponíveis. In: CRESTANA, S.; CRUVINEL, P. E.; MASCARENHAS, S.; BISCEGLI, C. I.; MARTIN-NETO, L.; COLNAGO, L. A., ed. Instrumentação agropecuária: contribuições no limiar do novo século. Brasília: EMBRAPA-SPI, 1996. Cap. 2. p. 51-90.| Biblioteca(s): Embrapa Instrumentação. |
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| 10. | | CRUVINEL, P. E.; FLOCCHINI, R. G.; CRESTANA, S.; MORALES, J. R.; MIRANDA, J.; KUSKO, B. H.; NIELSEN, D. R. Studying the influence of the aggregate sizes on some elements of an oxisol with PIXE. Soil Science, Baltimore, v.155, n.2, p.100-104, Feb. 1993.| Biblioteca(s): Embrapa Instrumentação. |
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| 11. | | CRUVINEL, P. E.; NIELSEN, D. R.; CRESTANA, S.; FLOCCHINI, R. G.; MORALES, J. R.; MIRANDA, J.; KUSKO, B. Studying the influence of the aggregate sizes on the trace elements of an ione oxisol with PIXE. In: CONGRESSO BRASILEIRO DE CIENCIA DO SOLO, 23., jul. 1991, Porto Alegre, RS. Programa e resumos... Porto Alegre: Sociedade Brasileira de Ciencia do Solo, 1991. p.62. Ref.018.| Biblioteca(s): Embrapa Instrumentação. |
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| Registros recuperados : 11 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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