Determination of copper at wide range concentrations using instrumental features of high-resolution continuum source flame atomic absorption spectrometry

Detalhes bibliográficos
Autor(a) principal: Lima,Renata Toledo
Data de Publicação: 2010
Outros Autores: Raposo Jr.,Jorge Luiz, Virgílio,Alex, Gomes Neto,José Anchieta
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Eclética Química
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-46702010000400011
Resumo: This work describes a method to determine Cu at wide range concentrations in a single run without need of further dilutions employing high-resolution continuum source flame atomic absorption spectrometry. Different atomic lines for Cu at 324.754 nm, 327.396 nm, 222.570 nm, 249.215 nm and 224.426 nm were evaluated and main figures of merit established. Absorbance measurements at 324.754 nm, 249.215 nm and 224.426 nm allows the determination of Cu in the 0.07 - 5.0 mg L-1, 5.0 - 100 mg L-1 and 100 - 800 mg L-1 concentration intervals respectively with linear correlation coefficients better than 0.998. Limits of detection were 21 µg L-1, 310 µg L-1 and 1400 µg L-1 for 324.754 nm, 249.215 nm and 224.426 nm, respectively and relative standard deviations (n = 12) were £ 2.7%. The proposed method was applied to water samples spiked with Cu and the results were in agreement at a 95% of confidence level (paired t-test) with those obtained by line-source flame atomic absorption spectrometry.
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spelling Determination of copper at wide range concentrations using instrumental features of high-resolution continuum source flame atomic absorption spectrometryCopperHR-CS FAASWide range determinationThis work describes a method to determine Cu at wide range concentrations in a single run without need of further dilutions employing high-resolution continuum source flame atomic absorption spectrometry. Different atomic lines for Cu at 324.754 nm, 327.396 nm, 222.570 nm, 249.215 nm and 224.426 nm were evaluated and main figures of merit established. Absorbance measurements at 324.754 nm, 249.215 nm and 224.426 nm allows the determination of Cu in the 0.07 - 5.0 mg L-1, 5.0 - 100 mg L-1 and 100 - 800 mg L-1 concentration intervals respectively with linear correlation coefficients better than 0.998. Limits of detection were 21 µg L-1, 310 µg L-1 and 1400 µg L-1 for 324.754 nm, 249.215 nm and 224.426 nm, respectively and relative standard deviations (n = 12) were £ 2.7%. The proposed method was applied to water samples spiked with Cu and the results were in agreement at a 95% of confidence level (paired t-test) with those obtained by line-source flame atomic absorption spectrometry.Fundação Editora da Universidade Estadual Paulista Júlio de Mesquita Filho - UNESP2010-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-46702010000400011Eclética Química v.35 n.4 2010reponame:Eclética Químicainstname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)instacron:UNESP10.1590/S0100-46702010000400011info:eu-repo/semantics/openAccessLima,Renata ToledoRaposo Jr.,Jorge LuizVirgílio,AlexGomes Neto,José Anchietaeng2011-08-23T00:00:00Zoai:scielo:S0100-46702010000400011Revistahttp://revista.iq.unesp.br/ojs/index.php/ecletica/PUBhttps://revista.iq.unesp.br/ojs/index.php/ecletica/oaiecletica@ctrlk.com.br||ecletica@iq.unesp.br1678-46181678-4618opendoar:2011-08-23T00:00Eclética Química - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)false
dc.title.none.fl_str_mv Determination of copper at wide range concentrations using instrumental features of high-resolution continuum source flame atomic absorption spectrometry
title Determination of copper at wide range concentrations using instrumental features of high-resolution continuum source flame atomic absorption spectrometry
spellingShingle Determination of copper at wide range concentrations using instrumental features of high-resolution continuum source flame atomic absorption spectrometry
Lima,Renata Toledo
Copper
HR-CS FAAS
Wide range determination
title_short Determination of copper at wide range concentrations using instrumental features of high-resolution continuum source flame atomic absorption spectrometry
title_full Determination of copper at wide range concentrations using instrumental features of high-resolution continuum source flame atomic absorption spectrometry
title_fullStr Determination of copper at wide range concentrations using instrumental features of high-resolution continuum source flame atomic absorption spectrometry
title_full_unstemmed Determination of copper at wide range concentrations using instrumental features of high-resolution continuum source flame atomic absorption spectrometry
title_sort Determination of copper at wide range concentrations using instrumental features of high-resolution continuum source flame atomic absorption spectrometry
author Lima,Renata Toledo
author_facet Lima,Renata Toledo
Raposo Jr.,Jorge Luiz
Virgílio,Alex
Gomes Neto,José Anchieta
author_role author
author2 Raposo Jr.,Jorge Luiz
Virgílio,Alex
Gomes Neto,José Anchieta
author2_role author
author
author
dc.contributor.author.fl_str_mv Lima,Renata Toledo
Raposo Jr.,Jorge Luiz
Virgílio,Alex
Gomes Neto,José Anchieta
dc.subject.por.fl_str_mv Copper
HR-CS FAAS
Wide range determination
topic Copper
HR-CS FAAS
Wide range determination
description This work describes a method to determine Cu at wide range concentrations in a single run without need of further dilutions employing high-resolution continuum source flame atomic absorption spectrometry. Different atomic lines for Cu at 324.754 nm, 327.396 nm, 222.570 nm, 249.215 nm and 224.426 nm were evaluated and main figures of merit established. Absorbance measurements at 324.754 nm, 249.215 nm and 224.426 nm allows the determination of Cu in the 0.07 - 5.0 mg L-1, 5.0 - 100 mg L-1 and 100 - 800 mg L-1 concentration intervals respectively with linear correlation coefficients better than 0.998. Limits of detection were 21 µg L-1, 310 µg L-1 and 1400 µg L-1 for 324.754 nm, 249.215 nm and 224.426 nm, respectively and relative standard deviations (n = 12) were £ 2.7%. The proposed method was applied to water samples spiked with Cu and the results were in agreement at a 95% of confidence level (paired t-test) with those obtained by line-source flame atomic absorption spectrometry.
publishDate 2010
dc.date.none.fl_str_mv 2010-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-46702010000400011
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-46702010000400011
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-46702010000400011
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Fundação Editora da Universidade Estadual Paulista Júlio de Mesquita Filho - UNESP
publisher.none.fl_str_mv Fundação Editora da Universidade Estadual Paulista Júlio de Mesquita Filho - UNESP
dc.source.none.fl_str_mv Eclética Química v.35 n.4 2010
reponame:Eclética Química
instname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Eclética Química
collection Eclética Química
repository.name.fl_str_mv Eclética Química - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)
repository.mail.fl_str_mv ecletica@ctrlk.com.br||ecletica@iq.unesp.br
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