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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/84159
Ver los metadatos del registro completo
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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 Técnicas2025-09-29T09:40:03Zoai: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:34982025-09-29 09:40:03.327CONICET 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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1844613266298372096 |
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13.070432 |