Eco-friendly cellular phase microextraction technique based on the use of green microalgae cells for trace thallium species determination in natural water samples

Autores
Escudero, Leticia Belén; García, Carolina Belén; Da Silva, Stela Maris; Baron, Jorge Horacio
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A simple and environmentally-friendly technique named cellular phase microextraction (Cell-PME) was developed for thallium (Tl) species determination. Basically, Tl(III) species was mixed with a solution containing Chlorella vulgaris microalgae cells (480 mg L-1) at pH 7 and the resulting system was stirred with a vortex for 8 min. After a centrifugation process, the sediment phase was directly injected into the graphite furnace of an electrothermal atomic absorption spectrometer. In contrast to Tl(III), Tl(I) species was not retained by the biomass. Optimization of variables influencing biosorption process, including sample pH, microalgae mass and sample volume, was performed. A biosorption efficiency of 65% and an enrichment factor of 50 were obtained with only 5.00 mL of sample. The limit of detection (LOD) was 8.3 ng L-1 Tl, while the relative standard deviation (RSD) was 5.1% (at 1 µg L-1 Tl and n = 10), calculated from the peak height of absorbance signals (Gaussian-shape and reproducible peaks). The proposed method was successfully applied to determine Tl species in environmental samples, including drinking and natural water. To the best of our knowledge, a biosorption process is applied for the first time for Tl species separation and determination in the analytical field.
Fil: Escudero, Leticia Belén. 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; Argentina
Fil: García, Carolina Belén. Universidad Nacional de Cuyo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Da Silva, Stela Maris. Universidad Nacional de Cuyo; Argentina
Fil: Baron, Jorge Horacio. Universidad Nacional de Cuyo; Argentina
Materia
Microextraction
Speciation
Thallium
Biosorption
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:11336/5795
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Eco-friendly cellular phase microextraction technique based on the use of green microalgae cells for trace thallium species determination in natural water samplesEscudero, Leticia BelénGarcía, Carolina BelénDa Silva, Stela MarisBaron, Jorge HoracioMicroextractionSpeciationThalliumBiosorptionhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1A simple and environmentally-friendly technique named cellular phase microextraction (Cell-PME) was developed for thallium (Tl) species determination. Basically, Tl(III) species was mixed with a solution containing Chlorella vulgaris microalgae cells (480 mg L-1) at pH 7 and the resulting system was stirred with a vortex for 8 min. After a centrifugation process, the sediment phase was directly injected into the graphite furnace of an electrothermal atomic absorption spectrometer. In contrast to Tl(III), Tl(I) species was not retained by the biomass. Optimization of variables influencing biosorption process, including sample pH, microalgae mass and sample volume, was performed. A biosorption efficiency of 65% and an enrichment factor of 50 were obtained with only 5.00 mL of sample. The limit of detection (LOD) was 8.3 ng L-1 Tl, while the relative standard deviation (RSD) was 5.1% (at 1 µg L-1 Tl and n = 10), calculated from the peak height of absorbance signals (Gaussian-shape and reproducible peaks). The proposed method was successfully applied to determine Tl species in environmental samples, including drinking and natural water. To the best of our knowledge, a biosorption process is applied for the first time for Tl species separation and determination in the analytical field.Fil: Escudero, Leticia Belén. 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; ArgentinaFil: García, Carolina Belén. Universidad Nacional de Cuyo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Da Silva, Stela Maris. Universidad Nacional de Cuyo; ArgentinaFil: Baron, Jorge Horacio. Universidad Nacional de Cuyo; ArgentinaRoyal Society of Chemistry2015-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/5795Escudero, Leticia Belén; García, Carolina Belén; Da Silva, Stela Maris; Baron, Jorge Horacio; Eco-friendly cellular phase microextraction technique based on the use of green microalgae cells for trace thallium species determination in natural water samples; Royal Society of Chemistry; Analytical Methods; 7; 18; 7-2015; 7480-74871759-9660enginfo:eu-repo/semantics/altIdentifier/url/http://pubs.rsc.org/en/content/articlelanding/2015/ay/c5ay01667cinfo:eu-repo/semantics/altIdentifier/doi/10.1039/C5AY01667Cinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:01:44Zoai:ri.conicet.gov.ar:11336/5795instacron: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 10:01:45.16CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Eco-friendly cellular phase microextraction technique based on the use of green microalgae cells for trace thallium species determination in natural water samples
title Eco-friendly cellular phase microextraction technique based on the use of green microalgae cells for trace thallium species determination in natural water samples
spellingShingle Eco-friendly cellular phase microextraction technique based on the use of green microalgae cells for trace thallium species determination in natural water samples
Escudero, Leticia Belén
Microextraction
Speciation
Thallium
Biosorption
title_short Eco-friendly cellular phase microextraction technique based on the use of green microalgae cells for trace thallium species determination in natural water samples
title_full Eco-friendly cellular phase microextraction technique based on the use of green microalgae cells for trace thallium species determination in natural water samples
title_fullStr Eco-friendly cellular phase microextraction technique based on the use of green microalgae cells for trace thallium species determination in natural water samples
title_full_unstemmed Eco-friendly cellular phase microextraction technique based on the use of green microalgae cells for trace thallium species determination in natural water samples
title_sort Eco-friendly cellular phase microextraction technique based on the use of green microalgae cells for trace thallium species determination in natural water samples
dc.creator.none.fl_str_mv Escudero, Leticia Belén
García, Carolina Belén
Da Silva, Stela Maris
Baron, Jorge Horacio
author Escudero, Leticia Belén
author_facet Escudero, Leticia Belén
García, Carolina Belén
Da Silva, Stela Maris
Baron, Jorge Horacio
author_role author
author2 García, Carolina Belén
Da Silva, Stela Maris
Baron, Jorge Horacio
author2_role author
author
author
dc.subject.none.fl_str_mv Microextraction
Speciation
Thallium
Biosorption
topic Microextraction
Speciation
Thallium
Biosorption
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv A simple and environmentally-friendly technique named cellular phase microextraction (Cell-PME) was developed for thallium (Tl) species determination. Basically, Tl(III) species was mixed with a solution containing Chlorella vulgaris microalgae cells (480 mg L-1) at pH 7 and the resulting system was stirred with a vortex for 8 min. After a centrifugation process, the sediment phase was directly injected into the graphite furnace of an electrothermal atomic absorption spectrometer. In contrast to Tl(III), Tl(I) species was not retained by the biomass. Optimization of variables influencing biosorption process, including sample pH, microalgae mass and sample volume, was performed. A biosorption efficiency of 65% and an enrichment factor of 50 were obtained with only 5.00 mL of sample. The limit of detection (LOD) was 8.3 ng L-1 Tl, while the relative standard deviation (RSD) was 5.1% (at 1 µg L-1 Tl and n = 10), calculated from the peak height of absorbance signals (Gaussian-shape and reproducible peaks). The proposed method was successfully applied to determine Tl species in environmental samples, including drinking and natural water. To the best of our knowledge, a biosorption process is applied for the first time for Tl species separation and determination in the analytical field.
Fil: Escudero, Leticia Belén. 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; Argentina
Fil: García, Carolina Belén. Universidad Nacional de Cuyo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Da Silva, Stela Maris. Universidad Nacional de Cuyo; Argentina
Fil: Baron, Jorge Horacio. Universidad Nacional de Cuyo; Argentina
description A simple and environmentally-friendly technique named cellular phase microextraction (Cell-PME) was developed for thallium (Tl) species determination. Basically, Tl(III) species was mixed with a solution containing Chlorella vulgaris microalgae cells (480 mg L-1) at pH 7 and the resulting system was stirred with a vortex for 8 min. After a centrifugation process, the sediment phase was directly injected into the graphite furnace of an electrothermal atomic absorption spectrometer. In contrast to Tl(III), Tl(I) species was not retained by the biomass. Optimization of variables influencing biosorption process, including sample pH, microalgae mass and sample volume, was performed. A biosorption efficiency of 65% and an enrichment factor of 50 were obtained with only 5.00 mL of sample. The limit of detection (LOD) was 8.3 ng L-1 Tl, while the relative standard deviation (RSD) was 5.1% (at 1 µg L-1 Tl and n = 10), calculated from the peak height of absorbance signals (Gaussian-shape and reproducible peaks). The proposed method was successfully applied to determine Tl species in environmental samples, including drinking and natural water. To the best of our knowledge, a biosorption process is applied for the first time for Tl species separation and determination in the analytical field.
publishDate 2015
dc.date.none.fl_str_mv 2015-07
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/11336/5795
Escudero, Leticia Belén; García, Carolina Belén; Da Silva, Stela Maris; Baron, Jorge Horacio; Eco-friendly cellular phase microextraction technique based on the use of green microalgae cells for trace thallium species determination in natural water samples; Royal Society of Chemistry; Analytical Methods; 7; 18; 7-2015; 7480-7487
1759-9660
url http://hdl.handle.net/11336/5795
identifier_str_mv Escudero, Leticia Belén; García, Carolina Belén; Da Silva, Stela Maris; Baron, Jorge Horacio; Eco-friendly cellular phase microextraction technique based on the use of green microalgae cells for trace thallium species determination in natural water samples; Royal Society of Chemistry; Analytical Methods; 7; 18; 7-2015; 7480-7487
1759-9660
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://pubs.rsc.org/en/content/articlelanding/2015/ay/c5ay01667c
info:eu-repo/semantics/altIdentifier/doi/10.1039/C5AY01667C
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
dc.publisher.none.fl_str_mv Royal Society of Chemistry
publisher.none.fl_str_mv Royal Society of Chemistry
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_ 1842269715495387136
score 13.13397

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