Chemofiltration of eriochrome black T-zinc complex and determination by X-ray spectrometry

Autores
Vega, Mabel del Carmen; Augusto, Miriam; Talio, María Carolina; Fernandez, Liliana Patricia
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In the present work, a new methodology for zinc preconcentration and separation and its determination by X-ray spectrometry is proposed. The methodology is based on the formation of a complex using Eriochrome black T (1-naphtalensulfonic acid, 3-hidroxy-4-((1-hidroxy-2-naphtalenyl)azo)-7-nitro, monosodium salt), EBT, as complexing agent. Next, the complex is retained on a polyamide membrane by a chemofiltration process. The chemofiltrated material on the membrane constitutes a thin film, which minimizes or eliminates the interelemental effects when the instrumental detection is realized by X-ray fluorescence spectrometry. As the preconcentration method presented is based on the formation of a complex which will interact with the membrane during the chemofiltration, it was necessary first to establish the optimal conditions for the complex formation of Zn-EBT in aqueous medium and then to explore the optimal conditions for obtaining the thin film. The pH dependence of the metal ion chemofiltration on the membrane and other variables, such as contact time and retention capacity of the membrane, were also optimized. Chemofiltration step provided an enrichment factor of 30,000, improving considerably the instrumental detection limit, allowing the determination of trace zinc in environmental samples.
Fil: Vega, Mabel del Carmen. Universidad Nacional de San Juan. Facultad de Filosofía, Humanidades y Artes. Instituto de Cs.basicas. Area de Química; Argentina
Fil: Augusto, Miriam. Universidad Nacional de San Juan. Facultad de Filosofía, Humanidades y Artes. Instituto de Cs.basicas. Area de Química; Argentina
Fil: Talio, María Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina
Fil: Fernandez, Liliana Patricia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina
Materia
Chemofiltration
Environmental Samples
X-Ray Fluorescence
Zinc Traces
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/84159
Acceder
id CONICETDig_7993cfaeda37ac7fee3d298f35ee5d2c
oai_identifier_str oai:ri.conicet.gov.ar:11336/84159
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Chemofiltration of eriochrome black T-zinc complex and determination by X-ray spectrometryVega, Mabel del CarmenAugusto, MiriamTalio, María CarolinaFernandez, Liliana PatriciaChemofiltrationEnvironmental SamplesX-Ray FluorescenceZinc Traceshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1In the present work, a new methodology for zinc preconcentration and separation and its determination by X-ray spectrometry is proposed. The methodology is based on the formation of a complex using Eriochrome black T (1-naphtalensulfonic acid, 3-hidroxy-4-((1-hidroxy-2-naphtalenyl)azo)-7-nitro, monosodium salt), EBT, as complexing agent. Next, the complex is retained on a polyamide membrane by a chemofiltration process. The chemofiltrated material on the membrane constitutes a thin film, which minimizes or eliminates the interelemental effects when the instrumental detection is realized by X-ray fluorescence spectrometry. As the preconcentration method presented is based on the formation of a complex which will interact with the membrane during the chemofiltration, it was necessary first to establish the optimal conditions for the complex formation of Zn-EBT in aqueous medium and then to explore the optimal conditions for obtaining the thin film. The pH dependence of the metal ion chemofiltration on the membrane and other variables, such as contact time and retention capacity of the membrane, were also optimized. Chemofiltration step provided an enrichment factor of 30,000, improving considerably the instrumental detection limit, allowing the determination of trace zinc in environmental samples.Fil: Vega, Mabel del Carmen. Universidad Nacional de San Juan. Facultad de Filosofía, Humanidades y Artes. Instituto de Cs.basicas. Area de Química; ArgentinaFil: Augusto, Miriam. Universidad Nacional de San Juan. Facultad de Filosofía, Humanidades y Artes. Instituto de Cs.basicas. Area de Química; ArgentinaFil: Talio, María Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; ArgentinaFil: Fernandez, Liliana Patricia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; ArgentinaElsevier Science2011-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/84159Vega, Mabel del Carmen; Augusto, Miriam; Talio, María Carolina; Fernandez, Liliana Patricia; Chemofiltration of eriochrome black T-zinc complex and determination by X-ray spectrometry; Elsevier Science; Microchemical Journal; 99; 2; 11-2011; 425-4280026-265XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.microc.2011.06.016info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0026265X11001305info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:08:27Zoai:ri.conicet.gov.ar:11336/84159instacron: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:34982025-10-22 11:08:28.556CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Chemofiltration of eriochrome black T-zinc complex and determination by X-ray spectrometry
title Chemofiltration of eriochrome black T-zinc complex and determination by X-ray spectrometry
spellingShingle Chemofiltration of eriochrome black T-zinc complex and determination by X-ray spectrometry
Vega, Mabel del Carmen
Chemofiltration
Environmental Samples
X-Ray Fluorescence
Zinc Traces
title_short Chemofiltration of eriochrome black T-zinc complex and determination by X-ray spectrometry
title_full Chemofiltration of eriochrome black T-zinc complex and determination by X-ray spectrometry
title_fullStr Chemofiltration of eriochrome black T-zinc complex and determination by X-ray spectrometry
title_full_unstemmed Chemofiltration of eriochrome black T-zinc complex and determination by X-ray spectrometry
title_sort Chemofiltration of eriochrome black T-zinc complex and determination by X-ray spectrometry
dc.creator.none.fl_str_mv Vega, Mabel del Carmen
Augusto, Miriam
Talio, María Carolina
Fernandez, Liliana Patricia
author Vega, Mabel del Carmen
author_facet Vega, Mabel del Carmen
Augusto, Miriam
Talio, María Carolina
Fernandez, Liliana Patricia
author_role author
author2 Augusto, Miriam
Talio, María Carolina
Fernandez, Liliana Patricia
author2_role author
author
author
dc.subject.none.fl_str_mv Chemofiltration
Environmental Samples
X-Ray Fluorescence
Zinc Traces
topic Chemofiltration
Environmental Samples
X-Ray Fluorescence
Zinc Traces
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In the present work, a new methodology for zinc preconcentration and separation and its determination by X-ray spectrometry is proposed. The methodology is based on the formation of a complex using Eriochrome black T (1-naphtalensulfonic acid, 3-hidroxy-4-((1-hidroxy-2-naphtalenyl)azo)-7-nitro, monosodium salt), EBT, as complexing agent. Next, the complex is retained on a polyamide membrane by a chemofiltration process. The chemofiltrated material on the membrane constitutes a thin film, which minimizes or eliminates the interelemental effects when the instrumental detection is realized by X-ray fluorescence spectrometry. As the preconcentration method presented is based on the formation of a complex which will interact with the membrane during the chemofiltration, it was necessary first to establish the optimal conditions for the complex formation of Zn-EBT in aqueous medium and then to explore the optimal conditions for obtaining the thin film. The pH dependence of the metal ion chemofiltration on the membrane and other variables, such as contact time and retention capacity of the membrane, were also optimized. Chemofiltration step provided an enrichment factor of 30,000, improving considerably the instrumental detection limit, allowing the determination of trace zinc in environmental samples.
Fil: Vega, Mabel del Carmen. Universidad Nacional de San Juan. Facultad de Filosofía, Humanidades y Artes. Instituto de Cs.basicas. Area de Química; Argentina
Fil: Augusto, Miriam. Universidad Nacional de San Juan. Facultad de Filosofía, Humanidades y Artes. Instituto de Cs.basicas. Area de Química; Argentina
Fil: Talio, María Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina
Fil: Fernandez, Liliana Patricia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina
description In the present work, a new methodology for zinc preconcentration and separation and its determination by X-ray spectrometry is proposed. The methodology is based on the formation of a complex using Eriochrome black T (1-naphtalensulfonic acid, 3-hidroxy-4-((1-hidroxy-2-naphtalenyl)azo)-7-nitro, monosodium salt), EBT, as complexing agent. Next, the complex is retained on a polyamide membrane by a chemofiltration process. The chemofiltrated material on the membrane constitutes a thin film, which minimizes or eliminates the interelemental effects when the instrumental detection is realized by X-ray fluorescence spectrometry. As the preconcentration method presented is based on the formation of a complex which will interact with the membrane during the chemofiltration, it was necessary first to establish the optimal conditions for the complex formation of Zn-EBT in aqueous medium and then to explore the optimal conditions for obtaining the thin film. The pH dependence of the metal ion chemofiltration on the membrane and other variables, such as contact time and retention capacity of the membrane, were also optimized. Chemofiltration step provided an enrichment factor of 30,000, improving considerably the instrumental detection limit, allowing the determination of trace zinc in environmental samples.
publishDate 2011
dc.date.none.fl_str_mv 2011-11
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/11336/84159
Vega, Mabel del Carmen; Augusto, Miriam; Talio, María Carolina; Fernandez, Liliana Patricia; Chemofiltration of eriochrome black T-zinc complex and determination by X-ray spectrometry; Elsevier Science; Microchemical Journal; 99; 2; 11-2011; 425-428
0026-265X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/84159
identifier_str_mv Vega, Mabel del Carmen; Augusto, Miriam; Talio, María Carolina; Fernandez, Liliana Patricia; Chemofiltration of eriochrome black T-zinc complex and determination by X-ray spectrometry; Elsevier Science; Microchemical Journal; 99; 2; 11-2011; 425-428
0026-265X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.microc.2011.06.016
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0026265X11001305
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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 12.982451

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