An alternative methodology for the extraction of humic substances from organic soils
Autor(a) principal: | |
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Data de Publicação: | 1998 |
Outros Autores: | , |
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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Repositório Institucional da UNESP |
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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 |
|
_version_ |
1808128759309533184 |