Prometrine - humic acids interactions studied at a water/1,2-dichloroethane interface

Autores
Riva, Julieta Soledad; Juárez, Ana Valeria; Yudi, Lidia Mabel
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The interaction of the herbicide prometrine (PROM) with humic acids (HA) in water was analyzed at a pH range between 2.00 to 10.00. For this purpose the transfer current of protons facilitated by PROM across a water/1,2-dichloroethane interface was employed to quantify PROM concentration in absence or in presence of HA. When humic acids were added in increasing amounts to the solution containing PROM, a gradual decrease in current values was observed, evidencing the retention of PROM by HA. This effect was more important at high pH values. From the results it is concluded that the adsorption of PROM is dependent on the pH and HA concentration. At high pH values the herbicide is strongly retained by HA, revealing a strong interaction probably due to the possibility of PROM (neutral species) to access to hydrophobic regions of AH, where van der Waals interactions prevail. The amount of PROM bounded to HA was calculated by subtracting peak current values in presence and in absence of HA and the adsorption isotherm was plotted. The concave or S type curves obtained, indicative of a process with high resistance to adsorption at low concentrations, was fitted with Freundlich isotherm.
Fil: Riva, Julieta Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Juárez, Ana Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Yudi, Lidia Mabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Materia
Herbicides Adsorption
Humic Acids
Interfaces
Liquid/Liquid Interfaces
Prometrine
Triazines
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/71327
Acceder
id CONICETDig_67e24a2d027510cad95fed649945986e
oai_identifier_str oai:ri.conicet.gov.ar:11336/71327
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Prometrine - humic acids interactions studied at a water/1,2-dichloroethane interfaceRiva, Julieta SoledadJuárez, Ana ValeriaYudi, Lidia MabelHerbicides AdsorptionHumic AcidsInterfacesLiquid/Liquid InterfacesPrometrineTriazineshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The interaction of the herbicide prometrine (PROM) with humic acids (HA) in water was analyzed at a pH range between 2.00 to 10.00. For this purpose the transfer current of protons facilitated by PROM across a water/1,2-dichloroethane interface was employed to quantify PROM concentration in absence or in presence of HA. When humic acids were added in increasing amounts to the solution containing PROM, a gradual decrease in current values was observed, evidencing the retention of PROM by HA. This effect was more important at high pH values. From the results it is concluded that the adsorption of PROM is dependent on the pH and HA concentration. At high pH values the herbicide is strongly retained by HA, revealing a strong interaction probably due to the possibility of PROM (neutral species) to access to hydrophobic regions of AH, where van der Waals interactions prevail. The amount of PROM bounded to HA was calculated by subtracting peak current values in presence and in absence of HA and the adsorption isotherm was plotted. The concave or S type curves obtained, indicative of a process with high resistance to adsorption at low concentrations, was fitted with Freundlich isotherm.Fil: Riva, Julieta Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Juárez, Ana Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Yudi, Lidia Mabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaWiley VCH Verlag2010-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/71327Riva, Julieta Soledad; Juárez, Ana Valeria; Yudi, Lidia Mabel; Prometrine - humic acids interactions studied at a water/1,2-dichloroethane interface; Wiley VCH Verlag; Electroanalysis; 22; 4; 2-2010; 413-4181040-0397CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/elan.200900302info:eu-repo/semantics/altIdentifier/doi/10.1002/elan.200900302info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:57:13Zoai:ri.conicet.gov.ar:11336/71327instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:57:13.91CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Prometrine - humic acids interactions studied at a water/1,2-dichloroethane interface
title Prometrine - humic acids interactions studied at a water/1,2-dichloroethane interface
spellingShingle Prometrine - humic acids interactions studied at a water/1,2-dichloroethane interface
Riva, Julieta Soledad
Herbicides Adsorption
Humic Acids
Interfaces
Liquid/Liquid Interfaces
Prometrine
Triazines
title_short Prometrine - humic acids interactions studied at a water/1,2-dichloroethane interface
title_full Prometrine - humic acids interactions studied at a water/1,2-dichloroethane interface
title_fullStr Prometrine - humic acids interactions studied at a water/1,2-dichloroethane interface
title_full_unstemmed Prometrine - humic acids interactions studied at a water/1,2-dichloroethane interface
title_sort Prometrine - humic acids interactions studied at a water/1,2-dichloroethane interface
dc.creator.none.fl_str_mv Riva, Julieta Soledad
Juárez, Ana Valeria
Yudi, Lidia Mabel
author Riva, Julieta Soledad
author_facet Riva, Julieta Soledad
Juárez, Ana Valeria
Yudi, Lidia Mabel
author_role author
author2 Juárez, Ana Valeria
Yudi, Lidia Mabel
author2_role author
author
dc.subject.none.fl_str_mv Herbicides Adsorption
Humic Acids
Interfaces
Liquid/Liquid Interfaces
Prometrine
Triazines
topic Herbicides Adsorption
Humic Acids
Interfaces
Liquid/Liquid Interfaces
Prometrine
Triazines
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The interaction of the herbicide prometrine (PROM) with humic acids (HA) in water was analyzed at a pH range between 2.00 to 10.00. For this purpose the transfer current of protons facilitated by PROM across a water/1,2-dichloroethane interface was employed to quantify PROM concentration in absence or in presence of HA. When humic acids were added in increasing amounts to the solution containing PROM, a gradual decrease in current values was observed, evidencing the retention of PROM by HA. This effect was more important at high pH values. From the results it is concluded that the adsorption of PROM is dependent on the pH and HA concentration. At high pH values the herbicide is strongly retained by HA, revealing a strong interaction probably due to the possibility of PROM (neutral species) to access to hydrophobic regions of AH, where van der Waals interactions prevail. The amount of PROM bounded to HA was calculated by subtracting peak current values in presence and in absence of HA and the adsorption isotherm was plotted. The concave or S type curves obtained, indicative of a process with high resistance to adsorption at low concentrations, was fitted with Freundlich isotherm.
Fil: Riva, Julieta Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Juárez, Ana Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Yudi, Lidia Mabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
description The interaction of the herbicide prometrine (PROM) with humic acids (HA) in water was analyzed at a pH range between 2.00 to 10.00. For this purpose the transfer current of protons facilitated by PROM across a water/1,2-dichloroethane interface was employed to quantify PROM concentration in absence or in presence of HA. When humic acids were added in increasing amounts to the solution containing PROM, a gradual decrease in current values was observed, evidencing the retention of PROM by HA. This effect was more important at high pH values. From the results it is concluded that the adsorption of PROM is dependent on the pH and HA concentration. At high pH values the herbicide is strongly retained by HA, revealing a strong interaction probably due to the possibility of PROM (neutral species) to access to hydrophobic regions of AH, where van der Waals interactions prevail. The amount of PROM bounded to HA was calculated by subtracting peak current values in presence and in absence of HA and the adsorption isotherm was plotted. The concave or S type curves obtained, indicative of a process with high resistance to adsorption at low concentrations, was fitted with Freundlich isotherm.
publishDate 2010
dc.date.none.fl_str_mv 2010-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/71327
Riva, Julieta Soledad; Juárez, Ana Valeria; Yudi, Lidia Mabel; Prometrine - humic acids interactions studied at a water/1,2-dichloroethane interface; Wiley VCH Verlag; Electroanalysis; 22; 4; 2-2010; 413-418
1040-0397
CONICET Digital
CONICET
url http://hdl.handle.net/11336/71327
identifier_str_mv Riva, Julieta Soledad; Juárez, Ana Valeria; Yudi, Lidia Mabel; Prometrine - humic acids interactions studied at a water/1,2-dichloroethane interface; Wiley VCH Verlag; Electroanalysis; 22; 4; 2-2010; 413-418
1040-0397
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/elan.200900302
info:eu-repo/semantics/altIdentifier/doi/10.1002/elan.200900302
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley VCH Verlag
publisher.none.fl_str_mv Wiley VCH Verlag
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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