Lead preconcentration by solid phase extraction using oxidized carbon xerogel and spectrophotometric determination with dithizone

Autores
Maratta Martínez, Sergio Ariel; Vázquez, Sandra; López, Ayelén; Augusto, Miriam; Pacheco, Pablo Hugo
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The proposed methodology is based on the preconcentration of Pb2+ on oxidized carbon xerogel, a porous material of low density and high surface area. Adsorbed Pb2+ was eluted with HCl, followed by complexion with dithizone in ethanol-water solution and determined by UV-visible spectrophotometry in a continuous flow system (FI). Variables such as pH, type of eluent, eluent concentration, type of complexing solvent, concentration of complexing reagent and flow rates were optimized. The proposed system reached an enrichment factor of 50, with 5 mL of sample. Detection limit was of 0.9 μg L-1, with a precision of 7.8% (n = 10). The proposed system was successfully applied to the determination of Pb in tap water from San Juan City, Argentina.
Fil: Maratta Martínez, Sergio Ariel. Universidad Nacional de San Juan. Facultad de Filosofía, Humanidades y Artes. Departamento de Física y Química; Argentina. 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: Vázquez, Sandra. Universidad Nacional de San Juan. Facultad de Filosofía, Humanidades y Artes. Departamento de Física y Química; Argentina. Universidad Nacional de San Juan. Facultad de Filosofía, Humanidades y Artes. Instituto de Ciencias Básicas; Argentina
Fil: López, Ayelén. Universidad Nacional de San Juan. Facultad de Filosofía, Humanidades y Artes. Instituto de Ciencias Básicas; Argentina
Fil: Augusto, Miriam. Universidad Nacional de San Juan. Facultad de Filosofía, Humanidades y Artes. Departamento de Física y Química; Argentina. Universidad Nacional de San Juan. Facultad de Filosofía, Humanidades y Artes. Instituto de Ciencias Básicas; Argentina
Fil: Pacheco, Pablo Hugo. 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
CARBON XEROGEL
DITHIZONE
LEAD
SPECTROPHOTOMETRIC DETERMINATION
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:11336/60575
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/60575
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Lead preconcentration by solid phase extraction using oxidized carbon xerogel and spectrophotometric determination with dithizoneMaratta Martínez, Sergio ArielVázquez, SandraLópez, AyelénAugusto, MiriamPacheco, Pablo HugoCARBON XEROGELDITHIZONELEADSPECTROPHOTOMETRIC DETERMINATIONhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The proposed methodology is based on the preconcentration of Pb2+ on oxidized carbon xerogel, a porous material of low density and high surface area. Adsorbed Pb2+ was eluted with HCl, followed by complexion with dithizone in ethanol-water solution and determined by UV-visible spectrophotometry in a continuous flow system (FI). Variables such as pH, type of eluent, eluent concentration, type of complexing solvent, concentration of complexing reagent and flow rates were optimized. The proposed system reached an enrichment factor of 50, with 5 mL of sample. Detection limit was of 0.9 μg L-1, with a precision of 7.8% (n = 10). The proposed system was successfully applied to the determination of Pb in tap water from San Juan City, Argentina.Fil: Maratta Martínez, Sergio Ariel. Universidad Nacional de San Juan. Facultad de Filosofía, Humanidades y Artes. Departamento de Física y Química; Argentina. 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: Vázquez, Sandra. Universidad Nacional de San Juan. Facultad de Filosofía, Humanidades y Artes. Departamento de Física y Química; Argentina. Universidad Nacional de San Juan. Facultad de Filosofía, Humanidades y Artes. Instituto de Ciencias Básicas; ArgentinaFil: López, Ayelén. Universidad Nacional de San Juan. Facultad de Filosofía, Humanidades y Artes. Instituto de Ciencias Básicas; ArgentinaFil: Augusto, Miriam. Universidad Nacional de San Juan. Facultad de Filosofía, Humanidades y Artes. Departamento de Física y Química; Argentina. Universidad Nacional de San Juan. Facultad de Filosofía, Humanidades y Artes. Instituto de Ciencias Básicas; ArgentinaFil: Pacheco, Pablo Hugo. 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 Science2016-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/60575Maratta Martínez, Sergio Ariel; Vázquez, Sandra; López, Ayelén; Augusto, Miriam; Pacheco, Pablo Hugo; Lead preconcentration by solid phase extraction using oxidized carbon xerogel and spectrophotometric determination with dithizone; Elsevier Science; Microchemical Journal; 128; 9-2016; 166-1710026-265XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0026265X16300431info:eu-repo/semantics/altIdentifier/doi/10.1016/j.microc.2016.04.017info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:45:38Zoai:ri.conicet.gov.ar:11336/60575instacron: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 09:45:38.473CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Lead preconcentration by solid phase extraction using oxidized carbon xerogel and spectrophotometric determination with dithizone
title Lead preconcentration by solid phase extraction using oxidized carbon xerogel and spectrophotometric determination with dithizone
spellingShingle Lead preconcentration by solid phase extraction using oxidized carbon xerogel and spectrophotometric determination with dithizone
Maratta Martínez, Sergio Ariel
CARBON XEROGEL
DITHIZONE
LEAD
SPECTROPHOTOMETRIC DETERMINATION
title_short Lead preconcentration by solid phase extraction using oxidized carbon xerogel and spectrophotometric determination with dithizone
title_full Lead preconcentration by solid phase extraction using oxidized carbon xerogel and spectrophotometric determination with dithizone
title_fullStr Lead preconcentration by solid phase extraction using oxidized carbon xerogel and spectrophotometric determination with dithizone
title_full_unstemmed Lead preconcentration by solid phase extraction using oxidized carbon xerogel and spectrophotometric determination with dithizone
title_sort Lead preconcentration by solid phase extraction using oxidized carbon xerogel and spectrophotometric determination with dithizone
dc.creator.none.fl_str_mv Maratta Martínez, Sergio Ariel
Vázquez, Sandra
López, Ayelén
Augusto, Miriam
Pacheco, Pablo Hugo
author Maratta Martínez, Sergio Ariel
author_facet Maratta Martínez, Sergio Ariel
Vázquez, Sandra
López, Ayelén
Augusto, Miriam
Pacheco, Pablo Hugo
author_role author
author2 Vázquez, Sandra
López, Ayelén
Augusto, Miriam
Pacheco, Pablo Hugo
author2_role author
author
author
author
dc.subject.none.fl_str_mv CARBON XEROGEL
DITHIZONE
LEAD
SPECTROPHOTOMETRIC DETERMINATION
topic CARBON XEROGEL
DITHIZONE
LEAD
SPECTROPHOTOMETRIC DETERMINATION
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 proposed methodology is based on the preconcentration of Pb2+ on oxidized carbon xerogel, a porous material of low density and high surface area. Adsorbed Pb2+ was eluted with HCl, followed by complexion with dithizone in ethanol-water solution and determined by UV-visible spectrophotometry in a continuous flow system (FI). Variables such as pH, type of eluent, eluent concentration, type of complexing solvent, concentration of complexing reagent and flow rates were optimized. The proposed system reached an enrichment factor of 50, with 5 mL of sample. Detection limit was of 0.9 μg L-1, with a precision of 7.8% (n = 10). The proposed system was successfully applied to the determination of Pb in tap water from San Juan City, Argentina.
Fil: Maratta Martínez, Sergio Ariel. Universidad Nacional de San Juan. Facultad de Filosofía, Humanidades y Artes. Departamento de Física y Química; Argentina. 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: Vázquez, Sandra. Universidad Nacional de San Juan. Facultad de Filosofía, Humanidades y Artes. Departamento de Física y Química; Argentina. Universidad Nacional de San Juan. Facultad de Filosofía, Humanidades y Artes. Instituto de Ciencias Básicas; Argentina
Fil: López, Ayelén. Universidad Nacional de San Juan. Facultad de Filosofía, Humanidades y Artes. Instituto de Ciencias Básicas; Argentina
Fil: Augusto, Miriam. Universidad Nacional de San Juan. Facultad de Filosofía, Humanidades y Artes. Departamento de Física y Química; Argentina. Universidad Nacional de San Juan. Facultad de Filosofía, Humanidades y Artes. Instituto de Ciencias Básicas; Argentina
Fil: Pacheco, Pablo Hugo. 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 The proposed methodology is based on the preconcentration of Pb2+ on oxidized carbon xerogel, a porous material of low density and high surface area. Adsorbed Pb2+ was eluted with HCl, followed by complexion with dithizone in ethanol-water solution and determined by UV-visible spectrophotometry in a continuous flow system (FI). Variables such as pH, type of eluent, eluent concentration, type of complexing solvent, concentration of complexing reagent and flow rates were optimized. The proposed system reached an enrichment factor of 50, with 5 mL of sample. Detection limit was of 0.9 μg L-1, with a precision of 7.8% (n = 10). The proposed system was successfully applied to the determination of Pb in tap water from San Juan City, Argentina.
publishDate 2016
dc.date.none.fl_str_mv 2016-09
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/11336/60575
Maratta Martínez, Sergio Ariel; Vázquez, Sandra; López, Ayelén; Augusto, Miriam; Pacheco, Pablo Hugo; Lead preconcentration by solid phase extraction using oxidized carbon xerogel and spectrophotometric determination with dithizone; Elsevier Science; Microchemical Journal; 128; 9-2016; 166-171
0026-265X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/60575
identifier_str_mv Maratta Martínez, Sergio Ariel; Vázquez, Sandra; López, Ayelén; Augusto, Miriam; Pacheco, Pablo Hugo; Lead preconcentration by solid phase extraction using oxidized carbon xerogel and spectrophotometric determination with dithizone; Elsevier Science; Microchemical Journal; 128; 9-2016; 166-171
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/url/http://www.sciencedirect.com/science/article/pii/S0026265X16300431
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.microc.2016.04.017
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
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
_version_ 1842268744486748160
score 13.13397

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