Investigation of spectral interference in the determination of Pb in road dust using high-resolution continuum source graphite furnace atomic absorption spectrometry and direct sol...

Autores
Fick, Susane Schossler; Nakadi, Flávio Venâncio; Fujiwara, Fabian; Smichowski, Patricia Nora; Vale, Maria Goreti R.; Welz, Bernhard; de Andrade, Jailson B.
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Direct solid sample analysis using graphite furnace atomic absorption spectrometry (GF AAS) is an attractive alternative because no sample pretreatment is necessary. However, the major obstacles of this technique are spectral interference and the limited background correction capability of conventional line source AAS instruments. The introduction of high-resolution continuum source atomic absorption spectrometry (HR-CS AAS) has brought about a significant change in this direction due to its superior background correction capabilities. In this study, a method has been developed for the determination of Pb in road dust using HR-CS GF AAS and direct solid sample analysis. The analytical lines at 261.418 nm (2.1% relative sensitivity), with detection of 1 pixel, and at 283.306 nm (42% relative sensitivity), with side pixel evaluation, were used for Pb determination. Pyrolysis and atomization temperatures were 900 °C and 2300 °C, respectively, using a mixture of Pd and Mg as the chemical modifier. Twelve samples and three certified reference materials (CRMs) have been analyzed. A significant structured background has been observed at the optimum atomization temperature, which overlapped with the analyte atomic absorption wavelength. The background has been identified as AlCl, SiO and SiS molecules at 261.418 nm, and SiS at 283.306 nm. Least-squares background correction (LSBC) has been applied after the identification of the diatomic molecules and the results obtained for the CRMs were in agreement with the certified ones. The use of this correction technique allowed the elimination of spectral interference in the determination of Pb in road dust.
Fil: Fick, Susane Schossler. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Nakadi, Flávio Venâncio. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Fujiwara, Fabian. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina
Fil: Smichowski, Patricia Nora. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina
Fil: Vale, Maria Goreti R.. Universidade Federal do Rio Grande do Sul; Brasil. Universidade Federal da Bahia; Brasil
Fil: Welz, Bernhard. Universidade Federal da Bahia; Brasil. Universidade Federal de Santa Catarina; Brasil
Fil: de Andrade, Jailson B.. Universidade Federal da Bahia; Brasil
Materia
High-resolution continuum source atomic absorption spectrometry (HR-CS AAS)
Lead
Road dust
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:11336/98864
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/98864
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Investigation of spectral interference in the determination of Pb in road dust using high-resolution continuum source graphite furnace atomic absorption spectrometry and direct solid sample analysisFick, Susane SchosslerNakadi, Flávio VenâncioFujiwara, FabianSmichowski, Patricia NoraVale, Maria Goreti R.Welz, Bernhardde Andrade, Jailson B.High-resolution continuum source atomic absorption spectrometry (HR-CS AAS)LeadRoad dusthttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Direct solid sample analysis using graphite furnace atomic absorption spectrometry (GF AAS) is an attractive alternative because no sample pretreatment is necessary. However, the major obstacles of this technique are spectral interference and the limited background correction capability of conventional line source AAS instruments. The introduction of high-resolution continuum source atomic absorption spectrometry (HR-CS AAS) has brought about a significant change in this direction due to its superior background correction capabilities. In this study, a method has been developed for the determination of Pb in road dust using HR-CS GF AAS and direct solid sample analysis. The analytical lines at 261.418 nm (2.1% relative sensitivity), with detection of 1 pixel, and at 283.306 nm (42% relative sensitivity), with side pixel evaluation, were used for Pb determination. Pyrolysis and atomization temperatures were 900 °C and 2300 °C, respectively, using a mixture of Pd and Mg as the chemical modifier. Twelve samples and three certified reference materials (CRMs) have been analyzed. A significant structured background has been observed at the optimum atomization temperature, which overlapped with the analyte atomic absorption wavelength. The background has been identified as AlCl, SiO and SiS molecules at 261.418 nm, and SiS at 283.306 nm. Least-squares background correction (LSBC) has been applied after the identification of the diatomic molecules and the results obtained for the CRMs were in agreement with the certified ones. The use of this correction technique allowed the elimination of spectral interference in the determination of Pb in road dust.Fil: Fick, Susane Schossler. Universidade Federal do Rio Grande do Sul; BrasilFil: Nakadi, Flávio Venâncio. Universidade Federal do Rio Grande do Sul; BrasilFil: Fujiwara, Fabian. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; ArgentinaFil: Smichowski, Patricia Nora. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; ArgentinaFil: Vale, Maria Goreti R.. Universidade Federal do Rio Grande do Sul; Brasil. Universidade Federal da Bahia; BrasilFil: Welz, Bernhard. Universidade Federal da Bahia; Brasil. Universidade Federal de Santa Catarina; BrasilFil: de Andrade, Jailson B.. Universidade Federal da Bahia; BrasilRoyal Society of Chemistry2018-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/98864Fick, Susane Schossler; Nakadi, Flávio Venâncio; Fujiwara, Fabian; Smichowski, Patricia Nora; Vale, Maria Goreti R.; et al.; Investigation of spectral interference in the determination of Pb in road dust using high-resolution continuum source graphite furnace atomic absorption spectrometry and direct solid sample analysis; Royal Society of Chemistry; Journal of Analytical Atomic Spectrometry; 33; 4; 4-2018; 593-6020267-9477CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2018/JA/C7JA00405Binfo:eu-repo/semantics/altIdentifier/doi/10.1039/c7ja00405binfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:47:53Zoai:ri.conicet.gov.ar:11336/98864instacron: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 09:47:53.842CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Investigation of spectral interference in the determination of Pb in road dust using high-resolution continuum source graphite furnace atomic absorption spectrometry and direct solid sample analysis
title Investigation of spectral interference in the determination of Pb in road dust using high-resolution continuum source graphite furnace atomic absorption spectrometry and direct solid sample analysis
spellingShingle Investigation of spectral interference in the determination of Pb in road dust using high-resolution continuum source graphite furnace atomic absorption spectrometry and direct solid sample analysis
Fick, Susane Schossler
High-resolution continuum source atomic absorption spectrometry (HR-CS AAS)
Lead
Road dust
title_short Investigation of spectral interference in the determination of Pb in road dust using high-resolution continuum source graphite furnace atomic absorption spectrometry and direct solid sample analysis
title_full Investigation of spectral interference in the determination of Pb in road dust using high-resolution continuum source graphite furnace atomic absorption spectrometry and direct solid sample analysis
title_fullStr Investigation of spectral interference in the determination of Pb in road dust using high-resolution continuum source graphite furnace atomic absorption spectrometry and direct solid sample analysis
title_full_unstemmed Investigation of spectral interference in the determination of Pb in road dust using high-resolution continuum source graphite furnace atomic absorption spectrometry and direct solid sample analysis
title_sort Investigation of spectral interference in the determination of Pb in road dust using high-resolution continuum source graphite furnace atomic absorption spectrometry and direct solid sample analysis
dc.creator.none.fl_str_mv Fick, Susane Schossler
Nakadi, Flávio Venâncio
Fujiwara, Fabian
Smichowski, Patricia Nora
Vale, Maria Goreti R.
Welz, Bernhard
de Andrade, Jailson B.
author Fick, Susane Schossler
author_facet Fick, Susane Schossler
Nakadi, Flávio Venâncio
Fujiwara, Fabian
Smichowski, Patricia Nora
Vale, Maria Goreti R.
Welz, Bernhard
de Andrade, Jailson B.
author_role author
author2 Nakadi, Flávio Venâncio
Fujiwara, Fabian
Smichowski, Patricia Nora
Vale, Maria Goreti R.
Welz, Bernhard
de Andrade, Jailson B.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv High-resolution continuum source atomic absorption spectrometry (HR-CS AAS)
Lead
Road dust
topic High-resolution continuum source atomic absorption spectrometry (HR-CS AAS)
Lead
Road dust
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Direct solid sample analysis using graphite furnace atomic absorption spectrometry (GF AAS) is an attractive alternative because no sample pretreatment is necessary. However, the major obstacles of this technique are spectral interference and the limited background correction capability of conventional line source AAS instruments. The introduction of high-resolution continuum source atomic absorption spectrometry (HR-CS AAS) has brought about a significant change in this direction due to its superior background correction capabilities. In this study, a method has been developed for the determination of Pb in road dust using HR-CS GF AAS and direct solid sample analysis. The analytical lines at 261.418 nm (2.1% relative sensitivity), with detection of 1 pixel, and at 283.306 nm (42% relative sensitivity), with side pixel evaluation, were used for Pb determination. Pyrolysis and atomization temperatures were 900 °C and 2300 °C, respectively, using a mixture of Pd and Mg as the chemical modifier. Twelve samples and three certified reference materials (CRMs) have been analyzed. A significant structured background has been observed at the optimum atomization temperature, which overlapped with the analyte atomic absorption wavelength. The background has been identified as AlCl, SiO and SiS molecules at 261.418 nm, and SiS at 283.306 nm. Least-squares background correction (LSBC) has been applied after the identification of the diatomic molecules and the results obtained for the CRMs were in agreement with the certified ones. The use of this correction technique allowed the elimination of spectral interference in the determination of Pb in road dust.
Fil: Fick, Susane Schossler. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Nakadi, Flávio Venâncio. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Fujiwara, Fabian. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina
Fil: Smichowski, Patricia Nora. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina
Fil: Vale, Maria Goreti R.. Universidade Federal do Rio Grande do Sul; Brasil. Universidade Federal da Bahia; Brasil
Fil: Welz, Bernhard. Universidade Federal da Bahia; Brasil. Universidade Federal de Santa Catarina; Brasil
Fil: de Andrade, Jailson B.. Universidade Federal da Bahia; Brasil
description Direct solid sample analysis using graphite furnace atomic absorption spectrometry (GF AAS) is an attractive alternative because no sample pretreatment is necessary. However, the major obstacles of this technique are spectral interference and the limited background correction capability of conventional line source AAS instruments. The introduction of high-resolution continuum source atomic absorption spectrometry (HR-CS AAS) has brought about a significant change in this direction due to its superior background correction capabilities. In this study, a method has been developed for the determination of Pb in road dust using HR-CS GF AAS and direct solid sample analysis. The analytical lines at 261.418 nm (2.1% relative sensitivity), with detection of 1 pixel, and at 283.306 nm (42% relative sensitivity), with side pixel evaluation, were used for Pb determination. Pyrolysis and atomization temperatures were 900 °C and 2300 °C, respectively, using a mixture of Pd and Mg as the chemical modifier. Twelve samples and three certified reference materials (CRMs) have been analyzed. A significant structured background has been observed at the optimum atomization temperature, which overlapped with the analyte atomic absorption wavelength. The background has been identified as AlCl, SiO and SiS molecules at 261.418 nm, and SiS at 283.306 nm. Least-squares background correction (LSBC) has been applied after the identification of the diatomic molecules and the results obtained for the CRMs were in agreement with the certified ones. The use of this correction technique allowed the elimination of spectral interference in the determination of Pb in road dust.
publishDate 2018
dc.date.none.fl_str_mv 2018-04
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/11336/98864
Fick, Susane Schossler; Nakadi, Flávio Venâncio; Fujiwara, Fabian; Smichowski, Patricia Nora; Vale, Maria Goreti R.; et al.; Investigation of spectral interference in the determination of Pb in road dust using high-resolution continuum source graphite furnace atomic absorption spectrometry and direct solid sample analysis; Royal Society of Chemistry; Journal of Analytical Atomic Spectrometry; 33; 4; 4-2018; 593-602
0267-9477
CONICET Digital
CONICET
url http://hdl.handle.net/11336/98864
identifier_str_mv Fick, Susane Schossler; Nakadi, Flávio Venâncio; Fujiwara, Fabian; Smichowski, Patricia Nora; Vale, Maria Goreti R.; et al.; Investigation of spectral interference in the determination of Pb in road dust using high-resolution continuum source graphite furnace atomic absorption spectrometry and direct solid sample analysis; Royal Society of Chemistry; Journal of Analytical Atomic Spectrometry; 33; 4; 4-2018; 593-602
0267-9477
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://pubs.rsc.org/en/content/articlelanding/2018/JA/C7JA00405B
info:eu-repo/semantics/altIdentifier/doi/10.1039/c7ja00405b
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
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score 13.070432

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