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 | Acesso ao texto completo restrito à biblioteca da Embrapa Meio Ambiente. Para informações adicionais entre em contato com cnpma.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
21/07/1999 |
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Data da última atualização: |
15/04/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
AGBENIN, J. O.; ABREU, C. A. de; RAIJ, B. van. |
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Afiliação: |
JOHN O. AGBENIN; CLEIDE A. DE ABREU, IAC/CAMPINAS; BERNARDO VAN RAIJ, CNPMA. |
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Título: |
Extraction of phytoavailable trace metals from tropical soils by mixed ion exchange resin modified with inorganic and organic ligands. |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
Science of the Total Environment, v.227, p.187-196, 1999. |
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Idioma: |
Inglês |
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Conteúdo: |
Chelating agents and organic acid ligands readily solubilize trace and heavy metals in soils. We compared Fe, Mn, Cu and Zn extracted from 16 soils by a mixed ion exchange resin (Amberlite IRA-120 + Amberlite IRA-400) modified with six simple inorganic and organic acid ligands with a conventional chelating agent (DTPA) and biossay. The mixed cation-anion exchange resins were saturated with Na-salts of chloride (R-CHL), bicarbonate (R-BIC), fluoride (R-FLU), acetate (R-ACT), citrate (R-CIT) and tartrate (R-TAR). Solubilization and adsorption of Fe and Cu from the soils By resin-ligand systems decreased in the order R-CIT >_ R-FLU >_ R-TAR = R-ACT > R-CHL = R-BIC reflecting differential stability of Fe- and Cu-organic/inorganic complexes. The R-CHL solubilized and adsorbed more Mn and Zn than other resin-ligand systems because of the relatively low pH maintained by the R-CHL-soil suspension. Extraction with DTPA gave similar amounts of Fe and Mn as resin-ligand systems, but DTPA extracted two to three times more Cu and Zn than resin. Resin-extractable Fe, Mn and Cu correlated with the corresponding DTPA-extractable metal contents, while both resin- and DTPA-extractable Cu correlated with the bioassay results. The R-ACT and R-TAR extractable Zn correlated more strongly with the biossay results than DTPA-extractable Zn. Mixed ion exchange resin is apparently feasible for characterizing plant available Fe, Mn, Cu and Zn in soils. |
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Palavras-Chave: |
Bioassay; Chemical extraction; Effect; Resin extraction. |
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Thesaurus Nal: |
agriculture; soil properties. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02131naa a2200217 a 4500
001 1013137
005 2019-04-15
008 1999 bl uuuu u00u1 u #d
100 1 $aAGBENIN, J. O.
245 $aExtraction of phytoavailable trace metals from tropical soils by mixed ion exchange resin modified with inorganic and organic ligands.$h[electronic resource]
260 $c1999
520 $aChelating agents and organic acid ligands readily solubilize trace and heavy metals in soils. We compared Fe, Mn, Cu and Zn extracted from 16 soils by a mixed ion exchange resin (Amberlite IRA-120 + Amberlite IRA-400) modified with six simple inorganic and organic acid ligands with a conventional chelating agent (DTPA) and biossay. The mixed cation-anion exchange resins were saturated with Na-salts of chloride (R-CHL), bicarbonate (R-BIC), fluoride (R-FLU), acetate (R-ACT), citrate (R-CIT) and tartrate (R-TAR). Solubilization and adsorption of Fe and Cu from the soils By resin-ligand systems decreased in the order R-CIT >_ R-FLU >_ R-TAR = R-ACT > R-CHL = R-BIC reflecting differential stability of Fe- and Cu-organic/inorganic complexes. The R-CHL solubilized and adsorbed more Mn and Zn than other resin-ligand systems because of the relatively low pH maintained by the R-CHL-soil suspension. Extraction with DTPA gave similar amounts of Fe and Mn as resin-ligand systems, but DTPA extracted two to three times more Cu and Zn than resin. Resin-extractable Fe, Mn and Cu correlated with the corresponding DTPA-extractable metal contents, while both resin- and DTPA-extractable Cu correlated with the bioassay results. The R-ACT and R-TAR extractable Zn correlated more strongly with the biossay results than DTPA-extractable Zn. Mixed ion exchange resin is apparently feasible for characterizing plant available Fe, Mn, Cu and Zn in soils.
650 $aagriculture
650 $asoil properties
653 $aBioassay
653 $aChemical extraction
653 $aEffect
653 $aResin extraction
700 1 $aABREU, C. A. de
700 1 $aRAIJ, B. van
773 $tScience of the Total Environment$gv.227, p.187-196, 1999.
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| 1. |  | BROWN, G. G.; DEMETRIO, W.; GABRIAC, Q.; PASINI, A.; KORASAKI, V.; OLIVEIRA, L.; FRANCHINI, J. C.; TORRES, E.; GALERANI, P. R.; GAZZIERO, D. L. P.; BENITO, N. P.; NUNES, D. H.; SANTOS, A.; FERREIRA, T.; NADOLNY, H. S.; BARTZ, M.; MASCHIO, W.; DUDAS, R. T.; ZAGATTO, M.; NIVA, C. C.; CLASEN, L.; SAUTTER, K.; FROUFE, L. C. M.; SEOANE, C. E. S.; MORAES, A. de; JAMES, S.; ALBERTON, O.; JÚNIOR, O. B.; SARAIVA, O. F.; GARCIA, A.; OLIVEIRA, E.; CÉSAR, R.; CORREA-FERREIRA, B. S.; BRUZ, L. S. M.; SILVA, E. da; CARDOSO, G. B. X.; LAVELLE, P.; VELÁSQUEZ, E.; CREMONESI, M.; PARRON, L. M.; BAGGIO, A. J.; NEVES, E. J. M.; HUNGRIA, M.; CAMPOS, T. A.; SILVA, V. L. da; REISSMANN, C. B.; CONRADO, A. C.; BOUILLET, J. D.; GONÇALVES, J. L. M.; BRANDANI, C. B.; VIANI, R. A. G.; PAULA, R. R.; LACLAU, J.; PEÑA-VENEGAS, C. P.; PERES, C.; DECAËNS, T.; PEY, B.; EISENHAUER, N.; COOPER, M.; MATHIEU, J. Soil macrofauna communities in Brazilian land-use systems. Biodiversity Data Journal, v. 12, e115000, 2024.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 4 |
| Biblioteca(s): Embrapa Florestas; Embrapa Recursos Genéticos e Biotecnologia; Embrapa Soja; Embrapa Unidades Centrais. |
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