Arsenic speciation analysis in mono-varietal wines by on-line ionic liquid-based dispersive liquid-liquid microextraction

Autores
Escudero, Leticia Belén; Martinis, Estefanía Mabel; Olsina, Roberto Antonio; Wuilloud, Rodolfo German
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A highly efficient separation and pre-concentration method for arsenic species determination, based on ionic liquid (IL) dispersive microextraction technique implemented in a flow analysis system, is proposed. Arsenite species [As(III)] were selectively separated by chelation with sodium diethyldithiocarbamate (DDTC), followed by dispersion with 40 mg of 1-octyl-3-methylimidazolium hexafluorophosphate ([C8mim][PF6]) IL. After analyte extraction, retention and separation of the IL phase was achieved with a packed microcolumn, which was subsequently eluted into a graphite tube for determination of As(III) by electrothermal atomic absorption spectrometry (ETAAS). Concentration of As(V) was deduced by the difference between total inorganic arsenic and As(III). Thus, determination of total arsenic was performed by previous degradation of organo-arsenic species, followed by a reduction. Under optimal conditions, As(III) extraction efficiency was 100% and a sensitivity enhancement factor of 46 was obtained with only 4.0 ml of sample The method was successfully applied for arsenic speciation studies in mono-varietal wines.
Fil: Escudero, Leticia Belén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Química de San Luis; Argentina. Universidad Nacional de Cuyo; Argentina
Fil: Martinis, Estefanía Mabel. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales. Laboratorio de Química Analítica para Investigación y Desarrollo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mendoza; Argentina
Fil: Olsina, Roberto Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Química de San Luis; Argentina
Fil: Wuilloud, Rodolfo German. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales. Laboratorio de Química Analítica para Investigación y Desarrollo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mendoza; Argentina
Materia
Arsenic
Wine
Speciation
Ionic Liquid
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:11336/3592
Acceder
id CONICETDig_ede9707bffc4cb6a2dc50ffd9b6dcd4f
oai_identifier_str oai:ri.conicet.gov.ar:11336/3592
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Arsenic speciation analysis in mono-varietal wines by on-line ionic liquid-based dispersive liquid-liquid microextractionEscudero, Leticia BelénMartinis, Estefanía MabelOlsina, Roberto AntonioWuilloud, Rodolfo GermanArsenicWineSpeciationIonic Liquidhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1https://purl.org/becyt/ford/2.11https://purl.org/becyt/ford/2A highly efficient separation and pre-concentration method for arsenic species determination, based on ionic liquid (IL) dispersive microextraction technique implemented in a flow analysis system, is proposed. Arsenite species [As(III)] were selectively separated by chelation with sodium diethyldithiocarbamate (DDTC), followed by dispersion with 40 mg of 1-octyl-3-methylimidazolium hexafluorophosphate ([C8mim][PF6]) IL. After analyte extraction, retention and separation of the IL phase was achieved with a packed microcolumn, which was subsequently eluted into a graphite tube for determination of As(III) by electrothermal atomic absorption spectrometry (ETAAS). Concentration of As(V) was deduced by the difference between total inorganic arsenic and As(III). Thus, determination of total arsenic was performed by previous degradation of organo-arsenic species, followed by a reduction. Under optimal conditions, As(III) extraction efficiency was 100% and a sensitivity enhancement factor of 46 was obtained with only 4.0 ml of sample The method was successfully applied for arsenic speciation studies in mono-varietal wines.Fil: Escudero, Leticia Belén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Química de San Luis; Argentina. Universidad Nacional de Cuyo; ArgentinaFil: Martinis, Estefanía Mabel. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales. Laboratorio de Química Analítica para Investigación y Desarrollo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mendoza; ArgentinaFil: Olsina, Roberto Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Química de San Luis; ArgentinaFil: Wuilloud, Rodolfo German. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales. Laboratorio de Química Analítica para Investigación y Desarrollo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mendoza; ArgentinaElsevier2012-11-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/3592Escudero, Leticia Belén; Martinis, Estefanía Mabel; Olsina, Roberto Antonio; Wuilloud, Rodolfo German; Arsenic speciation analysis in mono-varietal wines by on-line ionic liquid-based dispersive liquid-liquid microextraction; Elsevier; Food Chemistry; 138; 1; 8-11-2012; 484-4900308-8146enginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.foodchem.2012.10.054info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0308814612015920info:eu-repo/semantics/altIdentifier/issn/0308-8146info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:05:33Zoai:ri.conicet.gov.ar:11336/3592instacron: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 10:05:33.727CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Arsenic speciation analysis in mono-varietal wines by on-line ionic liquid-based dispersive liquid-liquid microextraction
title Arsenic speciation analysis in mono-varietal wines by on-line ionic liquid-based dispersive liquid-liquid microextraction
spellingShingle Arsenic speciation analysis in mono-varietal wines by on-line ionic liquid-based dispersive liquid-liquid microextraction
Escudero, Leticia Belén
Arsenic
Wine
Speciation
Ionic Liquid
title_short Arsenic speciation analysis in mono-varietal wines by on-line ionic liquid-based dispersive liquid-liquid microextraction
title_full Arsenic speciation analysis in mono-varietal wines by on-line ionic liquid-based dispersive liquid-liquid microextraction
title_fullStr Arsenic speciation analysis in mono-varietal wines by on-line ionic liquid-based dispersive liquid-liquid microextraction
title_full_unstemmed Arsenic speciation analysis in mono-varietal wines by on-line ionic liquid-based dispersive liquid-liquid microextraction
title_sort Arsenic speciation analysis in mono-varietal wines by on-line ionic liquid-based dispersive liquid-liquid microextraction
dc.creator.none.fl_str_mv Escudero, Leticia Belén
Martinis, Estefanía Mabel
Olsina, Roberto Antonio
Wuilloud, Rodolfo German
author Escudero, Leticia Belén
author_facet Escudero, Leticia Belén
Martinis, Estefanía Mabel
Olsina, Roberto Antonio
Wuilloud, Rodolfo German
author_role author
author2 Martinis, Estefanía Mabel
Olsina, Roberto Antonio
Wuilloud, Rodolfo German
author2_role author
author
author
dc.subject.none.fl_str_mv Arsenic
Wine
Speciation
Ionic Liquid
topic Arsenic
Wine
Speciation
Ionic Liquid
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/2.11
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv A highly efficient separation and pre-concentration method for arsenic species determination, based on ionic liquid (IL) dispersive microextraction technique implemented in a flow analysis system, is proposed. Arsenite species [As(III)] were selectively separated by chelation with sodium diethyldithiocarbamate (DDTC), followed by dispersion with 40 mg of 1-octyl-3-methylimidazolium hexafluorophosphate ([C8mim][PF6]) IL. After analyte extraction, retention and separation of the IL phase was achieved with a packed microcolumn, which was subsequently eluted into a graphite tube for determination of As(III) by electrothermal atomic absorption spectrometry (ETAAS). Concentration of As(V) was deduced by the difference between total inorganic arsenic and As(III). Thus, determination of total arsenic was performed by previous degradation of organo-arsenic species, followed by a reduction. Under optimal conditions, As(III) extraction efficiency was 100% and a sensitivity enhancement factor of 46 was obtained with only 4.0 ml of sample The method was successfully applied for arsenic speciation studies in mono-varietal wines.
Fil: Escudero, Leticia Belén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Química de San Luis; Argentina. Universidad Nacional de Cuyo; Argentina
Fil: Martinis, Estefanía Mabel. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales. Laboratorio de Química Analítica para Investigación y Desarrollo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mendoza; Argentina
Fil: Olsina, Roberto Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Química de San Luis; Argentina
Fil: Wuilloud, Rodolfo German. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales. Laboratorio de Química Analítica para Investigación y Desarrollo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mendoza; Argentina
description A highly efficient separation and pre-concentration method for arsenic species determination, based on ionic liquid (IL) dispersive microextraction technique implemented in a flow analysis system, is proposed. Arsenite species [As(III)] were selectively separated by chelation with sodium diethyldithiocarbamate (DDTC), followed by dispersion with 40 mg of 1-octyl-3-methylimidazolium hexafluorophosphate ([C8mim][PF6]) IL. After analyte extraction, retention and separation of the IL phase was achieved with a packed microcolumn, which was subsequently eluted into a graphite tube for determination of As(III) by electrothermal atomic absorption spectrometry (ETAAS). Concentration of As(V) was deduced by the difference between total inorganic arsenic and As(III). Thus, determination of total arsenic was performed by previous degradation of organo-arsenic species, followed by a reduction. Under optimal conditions, As(III) extraction efficiency was 100% and a sensitivity enhancement factor of 46 was obtained with only 4.0 ml of sample The method was successfully applied for arsenic speciation studies in mono-varietal wines.
publishDate 2012
dc.date.none.fl_str_mv 2012-11-08
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/11336/3592
Escudero, Leticia Belén; Martinis, Estefanía Mabel; Olsina, Roberto Antonio; Wuilloud, Rodolfo German; Arsenic speciation analysis in mono-varietal wines by on-line ionic liquid-based dispersive liquid-liquid microextraction; Elsevier; Food Chemistry; 138; 1; 8-11-2012; 484-490
0308-8146
url http://hdl.handle.net/11336/3592
identifier_str_mv Escudero, Leticia Belén; Martinis, Estefanía Mabel; Olsina, Roberto Antonio; Wuilloud, Rodolfo German; Arsenic speciation analysis in mono-varietal wines by on-line ionic liquid-based dispersive liquid-liquid microextraction; Elsevier; Food Chemistry; 138; 1; 8-11-2012; 484-490
0308-8146
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.foodchem.2012.10.054
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0308814612015920
info:eu-repo/semantics/altIdentifier/issn/0308-8146
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
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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
_version_ 1842269916875456512
score 13.13397

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