An alternative methodology for the extraction of humic substances from organic soils

Detalhes bibliográficos
Autor(a) principal: Rocha, Julio Cesar [UNESP]
Data de Publicação: 1998
Outros Autores: Rosa, André Henrique [UNESP], Furlan, Maysa [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/S0103-50531998000100010
http://hdl.handle.net/11449/65624
Resumo: The present study reports on an alternative methodology for the extraction of Humic Substances (HS) from the soil. The extractions were carried out with 0.5 M KOH for 3 h, at a ratio of 1:20 (m/v) under a nitrogen atmosphere. The HS were separated by centrifugation based on their solubility in alcaline solution. This methodology was compared with the usual procedure in three different soil samples and in one sample from vermicompost. The yield, E4/E6 ratio, ash content, and the elemental composition (C, H, O, N) of the extracted HS have been determined. The functional groups were identified by Fourier-transform infrared spectroscopy. This novel procedure adds a new perspective to the extraction of humic substances due to the short time and high performance of the extraction in relation to the usual procedure.
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spelling An alternative methodology for the extraction of humic substances from organic soilsCharacterizationExtractionHumic substancesThe present study reports on an alternative methodology for the extraction of Humic Substances (HS) from the soil. The extractions were carried out with 0.5 M KOH for 3 h, at a ratio of 1:20 (m/v) under a nitrogen atmosphere. The HS were separated by centrifugation based on their solubility in alcaline solution. This methodology was compared with the usual procedure in three different soil samples and in one sample from vermicompost. The yield, E4/E6 ratio, ash content, and the elemental composition (C, H, O, N) of the extracted HS have been determined. The functional groups were identified by Fourier-transform infrared spectroscopy. This novel procedure adds a new perspective to the extraction of humic substances due to the short time and high performance of the extraction in relation to the usual procedure.Depto. de Quim. Analítica Inst. de Quim. de Araraquara UNESP, C.P. 355, 14800-900 Araraquara - SPDepto. de Quim. Orgânica Inst. de Quim. de Araraquara UNESP, C.P. 355, 14800-900 Araraquara - SPDepto. de Quim. Analítica Inst. de Quim. de Araraquara UNESP, C.P. 355, 14800-900 Araraquara - SPDepto. de Quim. Orgânica Inst. de Quim. de Araraquara UNESP, C.P. 355, 14800-900 Araraquara - SPUniversidade Estadual Paulista (Unesp)Rocha, Julio Cesar [UNESP]Rosa, André Henrique [UNESP]Furlan, Maysa [UNESP]2014-05-27T11:19:39Z2014-05-27T11:19:39Z1998-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article51-56application/pdfhttp://dx.doi.org/10.1590/S0103-50531998000100010Journal of the Brazilian Chemical Society, v. 9, n. 1, p. 51-56, 1998.0103-5053http://hdl.handle.net/11449/6562410.1590/S0103-50531998000100010S0103-50531998000100010WOS:0000747492000102-s2.0-00323687492-s2.0-0032368749.pdf414883740361820713080427947868720000-0002-2042-018XScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of the Brazilian Chemical Society1.4440,357info:eu-repo/semantics/openAccess2023-11-08T06:07:38Zoai:repositorio.unesp.br:11449/65624Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:08:11.388400Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv An alternative methodology for the extraction of humic substances from organic soils
title An alternative methodology for the extraction of humic substances from organic soils
spellingShingle An alternative methodology for the extraction of humic substances from organic soils
Rocha, Julio Cesar [UNESP]
Characterization
Extraction
Humic substances
title_short An alternative methodology for the extraction of humic substances from organic soils
title_full An alternative methodology for the extraction of humic substances from organic soils
title_fullStr An alternative methodology for the extraction of humic substances from organic soils
title_full_unstemmed An alternative methodology for the extraction of humic substances from organic soils
title_sort An alternative methodology for the extraction of humic substances from organic soils
author Rocha, Julio Cesar [UNESP]
author_facet Rocha, Julio Cesar [UNESP]
Rosa, André Henrique [UNESP]
Furlan, Maysa [UNESP]
author_role author
author2 Rosa, André Henrique [UNESP]
Furlan, Maysa [UNESP]
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Rocha, Julio Cesar [UNESP]
Rosa, André Henrique [UNESP]
Furlan, Maysa [UNESP]
dc.subject.por.fl_str_mv Characterization
Extraction
Humic substances
topic Characterization
Extraction
Humic substances
description The present study reports on an alternative methodology for the extraction of Humic Substances (HS) from the soil. The extractions were carried out with 0.5 M KOH for 3 h, at a ratio of 1:20 (m/v) under a nitrogen atmosphere. The HS were separated by centrifugation based on their solubility in alcaline solution. This methodology was compared with the usual procedure in three different soil samples and in one sample from vermicompost. The yield, E4/E6 ratio, ash content, and the elemental composition (C, H, O, N) of the extracted HS have been determined. The functional groups were identified by Fourier-transform infrared spectroscopy. This novel procedure adds a new perspective to the extraction of humic substances due to the short time and high performance of the extraction in relation to the usual procedure.
publishDate 1998
dc.date.none.fl_str_mv 1998-12-01
2014-05-27T11:19:39Z
2014-05-27T11:19:39Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1590/S0103-50531998000100010
Journal of the Brazilian Chemical Society, v. 9, n. 1, p. 51-56, 1998.
0103-5053
http://hdl.handle.net/11449/65624
10.1590/S0103-50531998000100010
S0103-50531998000100010
WOS:000074749200010
2-s2.0-0032368749
2-s2.0-0032368749.pdf
4148837403618207
1308042794786872
0000-0002-2042-018X
url http://dx.doi.org/10.1590/S0103-50531998000100010
http://hdl.handle.net/11449/65624
identifier_str_mv Journal of the Brazilian Chemical Society, v. 9, n. 1, p. 51-56, 1998.
0103-5053
10.1590/S0103-50531998000100010
S0103-50531998000100010
WOS:000074749200010
2-s2.0-0032368749
2-s2.0-0032368749.pdf
4148837403618207
1308042794786872
0000-0002-2042-018X
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal of the Brazilian Chemical Society
1.444
0,357
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 51-56
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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