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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
19/10/2015 |
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Data da última atualização: |
03/11/2021 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
FRANCHINI, C. A.; OLIVEIRA, T. L.; TEIXEIRA, W. G.; KUZNETSOV, A.; ACHETE, C. A. |
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Afiliação: |
C. A. FRANCHINI, INMETRO; T. L. OLIVEIRA, INMETRO; WENCESLAU GERALDES TEIXEIRA, CNPS; A. KUZNETSOV, INMETRO; C. A. ACHETE, INMETRO/UFRJ. |
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Título: |
Phase separation methodology for physicochemical studies of soils. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Journal of Physics: Conference Series, v. 575, 2015. Edition of the Proceedings of VII Brazilian Congress on Metrology, Ouro Preto, Nov. 2013. Ref. 012037. |
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Idioma: |
Inglês |
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Conteúdo: |
A detailed study of a soil in every country is of a paramount importance, because it determines an entire economic strategy. The mineralogical properties of soils have been studied in the world for more than 100 years by various characterization techniques, X-ray diffraction being the most prominent. The main difficulty in most of employed techniques is the dominance of the majority phases in the response or the measured signal from the sample that becloud minority phases preventing their identification. The application of methods of phases'separation would provide the possibility to discern minority phases in soils. This work presents a phase separation method that employs a combination of two phenomena based on principles of fluid dynamics: flotation and sedimentation. Different characterization methods were used to analyse the produced soil samples. The methodology employed for separation of phases allowed the complete separation of clay phase from heavier mineral phases. This result makes it possible to discern minority mineral phases of soils that are difficult to detect. A more accurate determination of the mineralogical composition of a soil becomes feasible. |
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Palavras-Chave: |
Caracterização do solo; Separação de fases. |
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Thesagro: |
Mineralogia. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/131256/1/2015-052.pdf
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Marc: |
LEADER 01870nam a2200193 a 4500
001 2026658
005 2021-11-03
008 2015 bl uuuu u00u1 u #d
100 1 $aFRANCHINI, C. A.
245 $aPhase separation methodology for physicochemical studies of soils.$h[electronic resource]
260 $aJournal of Physics: Conference Series, v. 575, 2015. Edition of the Proceedings of VII Brazilian Congress on Metrology, Ouro Preto, Nov. 2013. Ref. 012037.$c2013
520 $aA detailed study of a soil in every country is of a paramount importance, because it determines an entire economic strategy. The mineralogical properties of soils have been studied in the world for more than 100 years by various characterization techniques, X-ray diffraction being the most prominent. The main difficulty in most of employed techniques is the dominance of the majority phases in the response or the measured signal from the sample that becloud minority phases preventing their identification. The application of methods of phases'separation would provide the possibility to discern minority phases in soils. This work presents a phase separation method that employs a combination of two phenomena based on principles of fluid dynamics: flotation and sedimentation. Different characterization methods were used to analyse the produced soil samples. The methodology employed for separation of phases allowed the complete separation of clay phase from heavier mineral phases. This result makes it possible to discern minority mineral phases of soils that are difficult to detect. A more accurate determination of the mineralogical composition of a soil becomes feasible.
650 $aMineralogia
653 $aCaracterização do solo
653 $aSeparação de fases
700 1 $aOLIVEIRA, T. L.
700 1 $aTEIXEIRA, W. G.
700 1 $aKUZNETSOV, A.
700 1 $aACHETE, C. A.
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Embrapa Solos (CNPS) |
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| Registros recuperados : 4 | |
| 3. |  | ALHO, C. F. B. V.; ARAÚJO, J. R.; ACHETE, C. A.; TEIXEIRA, W. G.; NOVOTNY, E. H.; PEREIRA, M. G.; HIEMSTRA, T.; KUYPER, T. W. Avaliação das características químicas da matéria orgânica do solo em Terra Preta de Índio por espectroscopia de fotoelétrons excitados por raios-X. In: ENCONTRO BRASILEIRO DE SUBSTÂNCIAS HÚMICAS, 11., 2015, São Carlos, SP. Substâncias húmicas, ciência e tecnologia: livro de resumos. São Carlos, SP: IQSC, 2015. p. 32-35.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Solos. |
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| 4. | | ARAÚJO, J. R.; ARCHANJO, B. S.; SOUZA, K. R. de; kwapinski, w.; FALCÃO, N. P. S.; NOVOTNY, E. H.; ACHETE, C. A. Selective extraction of humic acids from an anthropogenic Amazonian dark earth and from a chemically oxidized charcoal. Biology and Fertility of Soils, v. 50, n. 8, p. 1223-1232, 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Solos. |
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| Registros recuperados : 4 | |
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