Cloud-point extraction/preconcentration on-line flow injection method for mercury determination

Autores
Garrido, Mariano Enrique; Di Nezio, Maria Susana; Lista, Adriana Guillermina; Palomeque, Miriam Edid; Fernández Band, Beatriz Susana
Año de publicación
2004
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A cloud-point extraction/preconcentration (CPE/P) step is incorporated on-line into a flow injection system which is used to determine low levels of Hg(II) added to natural water samples. The analyte is complexed with dithizone. A solid reagent column (SRC) is used to prepare the reagent on-line by using 5% (v/v) Triton X-100 solution as solvent. The CPE/P is carried out by using the non-ionic surfactant Triton X-100. After obtaining the cloud-point on-line, the surfactant-rich phase containing the complex is collected in a mini column packed with cotton wool. Then, a hot water stream is passed through the column to elute the complex and the absorbance is measured at 500nm. All the flow and chemical variables are optimized and the enhancement factor for the system is estimated. The calibration is linear over the range 0.05-0.5μgml -1, the R.S.D. is 4.8%, the limit of detection (signal:noise = 3) is 0.014μgml-1 and the sample throughput is 30h-1. An open/closed system is used to eliminate the interference of iron(III). © 2003 Elsevier B.V. All rights reserved.
Fil: Garrido, Mariano Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Di Nezio, Maria Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Lista, Adriana Guillermina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Palomeque, Miriam Edid. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Fernández Band, Beatriz Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Materia
CLOUD-POINT
MERCURY
ON-LINE EXTRACTION
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:11336/96904
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Cloud-point extraction/preconcentration on-line flow injection method for mercury determinationGarrido, Mariano EnriqueDi Nezio, Maria SusanaLista, Adriana GuillerminaPalomeque, Miriam EdidFernández Band, Beatriz SusanaCLOUD-POINTMERCURYON-LINE EXTRACTIONhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1A cloud-point extraction/preconcentration (CPE/P) step is incorporated on-line into a flow injection system which is used to determine low levels of Hg(II) added to natural water samples. The analyte is complexed with dithizone. A solid reagent column (SRC) is used to prepare the reagent on-line by using 5% (v/v) Triton X-100 solution as solvent. The CPE/P is carried out by using the non-ionic surfactant Triton X-100. After obtaining the cloud-point on-line, the surfactant-rich phase containing the complex is collected in a mini column packed with cotton wool. Then, a hot water stream is passed through the column to elute the complex and the absorbance is measured at 500nm. All the flow and chemical variables are optimized and the enhancement factor for the system is estimated. The calibration is linear over the range 0.05-0.5μgml -1, the R.S.D. is 4.8%, the limit of detection (signal:noise = 3) is 0.014μgml-1 and the sample throughput is 30h-1. An open/closed system is used to eliminate the interference of iron(III). © 2003 Elsevier B.V. All rights reserved.Fil: Garrido, Mariano Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; ArgentinaFil: Di Nezio, Maria Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; ArgentinaFil: Lista, Adriana Guillermina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; ArgentinaFil: Palomeque, Miriam Edid. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; ArgentinaFil: Fernández Band, Beatriz Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; ArgentinaElsevier Science2004-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/96904Garrido, Mariano Enrique; Di Nezio, Maria Susana; Lista, Adriana Guillermina; Palomeque, Miriam Edid; Fernández Band, Beatriz Susana; Cloud-point extraction/preconcentration on-line flow injection method for mercury determination; Elsevier Science; Analytica Chimica Acta; 502; 2; 1-2004; 173-1770003-2670CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0003267003013114info:eu-repo/semantics/altIdentifier/doi/10.1016/j.aca.2003.09.070info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:46:04Zoai:ri.conicet.gov.ar:11336/96904instacron: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 09:46:04.655CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Cloud-point extraction/preconcentration on-line flow injection method for mercury determination
title Cloud-point extraction/preconcentration on-line flow injection method for mercury determination
spellingShingle Cloud-point extraction/preconcentration on-line flow injection method for mercury determination
Garrido, Mariano Enrique
CLOUD-POINT
MERCURY
ON-LINE EXTRACTION
title_short Cloud-point extraction/preconcentration on-line flow injection method for mercury determination
title_full Cloud-point extraction/preconcentration on-line flow injection method for mercury determination
title_fullStr Cloud-point extraction/preconcentration on-line flow injection method for mercury determination
title_full_unstemmed Cloud-point extraction/preconcentration on-line flow injection method for mercury determination
title_sort Cloud-point extraction/preconcentration on-line flow injection method for mercury determination
dc.creator.none.fl_str_mv Garrido, Mariano Enrique
Di Nezio, Maria Susana
Lista, Adriana Guillermina
Palomeque, Miriam Edid
Fernández Band, Beatriz Susana
author Garrido, Mariano Enrique
author_facet Garrido, Mariano Enrique
Di Nezio, Maria Susana
Lista, Adriana Guillermina
Palomeque, Miriam Edid
Fernández Band, Beatriz Susana
author_role author
author2 Di Nezio, Maria Susana
Lista, Adriana Guillermina
Palomeque, Miriam Edid
Fernández Band, Beatriz Susana
author2_role author
author
author
author
dc.subject.none.fl_str_mv CLOUD-POINT
MERCURY
ON-LINE EXTRACTION
topic CLOUD-POINT
MERCURY
ON-LINE EXTRACTION
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 cloud-point extraction/preconcentration (CPE/P) step is incorporated on-line into a flow injection system which is used to determine low levels of Hg(II) added to natural water samples. The analyte is complexed with dithizone. A solid reagent column (SRC) is used to prepare the reagent on-line by using 5% (v/v) Triton X-100 solution as solvent. The CPE/P is carried out by using the non-ionic surfactant Triton X-100. After obtaining the cloud-point on-line, the surfactant-rich phase containing the complex is collected in a mini column packed with cotton wool. Then, a hot water stream is passed through the column to elute the complex and the absorbance is measured at 500nm. All the flow and chemical variables are optimized and the enhancement factor for the system is estimated. The calibration is linear over the range 0.05-0.5μgml -1, the R.S.D. is 4.8%, the limit of detection (signal:noise = 3) is 0.014μgml-1 and the sample throughput is 30h-1. An open/closed system is used to eliminate the interference of iron(III). © 2003 Elsevier B.V. All rights reserved.
Fil: Garrido, Mariano Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Di Nezio, Maria Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Lista, Adriana Guillermina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Palomeque, Miriam Edid. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Fernández Band, Beatriz Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
description A cloud-point extraction/preconcentration (CPE/P) step is incorporated on-line into a flow injection system which is used to determine low levels of Hg(II) added to natural water samples. The analyte is complexed with dithizone. A solid reagent column (SRC) is used to prepare the reagent on-line by using 5% (v/v) Triton X-100 solution as solvent. The CPE/P is carried out by using the non-ionic surfactant Triton X-100. After obtaining the cloud-point on-line, the surfactant-rich phase containing the complex is collected in a mini column packed with cotton wool. Then, a hot water stream is passed through the column to elute the complex and the absorbance is measured at 500nm. All the flow and chemical variables are optimized and the enhancement factor for the system is estimated. The calibration is linear over the range 0.05-0.5μgml -1, the R.S.D. is 4.8%, the limit of detection (signal:noise = 3) is 0.014μgml-1 and the sample throughput is 30h-1. An open/closed system is used to eliminate the interference of iron(III). © 2003 Elsevier B.V. All rights reserved.
publishDate 2004
dc.date.none.fl_str_mv 2004-01
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/11336/96904
Garrido, Mariano Enrique; Di Nezio, Maria Susana; Lista, Adriana Guillermina; Palomeque, Miriam Edid; Fernández Band, Beatriz Susana; Cloud-point extraction/preconcentration on-line flow injection method for mercury determination; Elsevier Science; Analytica Chimica Acta; 502; 2; 1-2004; 173-177
0003-2670
CONICET Digital
CONICET
url http://hdl.handle.net/11336/96904
identifier_str_mv Garrido, Mariano Enrique; Di Nezio, Maria Susana; Lista, Adriana Guillermina; Palomeque, Miriam Edid; Fernández Band, Beatriz Susana; Cloud-point extraction/preconcentration on-line flow injection method for mercury determination; Elsevier Science; Analytica Chimica Acta; 502; 2; 1-2004; 173-177
0003-2670
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0003267003013114
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.aca.2003.09.070
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
application/pdf
application/pdf
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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