Unusual calibration curves observed for iron using high-resolution continuum source graphite furnace atomic absorption spectrometry

Detalhes bibliográficos
Autor(a) principal: Welz, Bernhard
Data de Publicação: 2010
Outros Autores: Santos, Lisia Maria Gobbo dos, Araujo, Rennan Geovanny Oliveira, Jacob, Silvana do C., Vale, Maria Goreti R., Okruss, Michael, Ross, Helmut Becker
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/5980
Resumo: Trabalho completo: acesso restrito, p. 258–262
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spelling Welz, BernhardSantos, Lisia Maria Gobbo dosAraujo, Rennan Geovanny OliveiraJacob, Silvana do C.Vale, Maria Goreti R.Okruss, MichaelRoss, Helmut BeckerWelz, BernhardSantos, Lisia Maria Gobbo dosAraujo, Rennan Geovanny OliveiraJacob, Silvana do C.Vale, Maria Goreti R.Okruss, MichaelRoss, Helmut Becker2012-05-29T13:57:17Z20100584-8547http://www.repositorio.ufba.br/ri/handle/ri/5980v. 65, n. 3Trabalho completo: acesso restrito, p. 258–262The simultaneous determination of cadmium and iron in plant and soil samples has been investigated using high-resolution continuum source graphite furnace atomic absorption spectrometry. The primary cadmium resonance line at 228.802 nm and an adjacent secondary iron line at 228.726 nm, which is within the spectral interval covered by the charge-coupled device (CCD) array detector, have been used for the investigations. Due to the very high iron content in most of the soil samples the possibility has been investigated to reduce the sensitivity and extend the working range by using side pixels for measurement at the line wings instead of the line core. It has been found that the calibration curves measured at all the analytically useful pixels of this line consisted of two linear parts with distinctly different slopes. This effect has been independent of the positioning of the wavelength, i.e., if the Cd line or the Fe line was in the center of the CCD array. The most likely explanation for this unusual behavior is a significant difference between the instrument width ΔλInstr and the absorption line width ΔλAbs, which is quite pronounced in the case of Fe. Using both parts of the calibration curves and simultaneous measurement at the line center and at the wings made it possible to extend the working range for the iron determination to more than three orders of magnitude.Submitted by Bruna Lessa (lessbruna@gmail.com) on 2012-05-29T13:57:17Z No. of bitstreams: 1 (36)1-s2.0-S058485471000008X-main.pdf: 256696 bytes, checksum: 737105707dc15f458dbd9754b818999a (MD5)Made available in DSpace on 2012-05-29T13:57:17Z (GMT). No. of bitstreams: 1 (36)1-s2.0-S058485471000008X-main.pdf: 256696 bytes, checksum: 737105707dc15f458dbd9754b818999a (MD5) Previous issue date: 2010-02Elsevierhttp://dx.doi.org/10.1016/j.sab.2010.01.007reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAHigh-resolution continuum source AASElectrothermal atomizationIron determinationCalibration graphsLine wingsUnusual calibration curves observed for iron using high-resolution continuum source graphite furnace atomic absorption spectrometrySpectrochimica Acta Part B: Atomic Spectroscopyinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01enginfo:eu-repo/semantics/openAccessORIGINAL(36)1-s2.0-S058485471000008X-main.pdf(36)1-s2.0-S058485471000008X-main.pdfapplication/pdf256696https://repositorio.ufba.br/bitstream/ri/5980/1/%2836%291-s2.0-S058485471000008X-main.pdf737105707dc15f458dbd9754b818999aMD51LICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/5980/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52TEXT(36)1-s2.0-S058485471000008X-main.pdf.txt(36)1-s2.0-S058485471000008X-main.pdf.txtExtracted texttext/plain28600https://repositorio.ufba.br/bitstream/ri/5980/3/%2836%291-s2.0-S058485471000008X-main.pdf.txtbd069bc799d5ac491981aaa51ce44ff7MD53ri/59802022-10-31 22:34:43.872oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-11-01T01:34:43Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Unusual calibration curves observed for iron using high-resolution continuum source graphite furnace atomic absorption spectrometry
dc.title.alternative.pt_BR.fl_str_mv Spectrochimica Acta Part B: Atomic Spectroscopy
title Unusual calibration curves observed for iron using high-resolution continuum source graphite furnace atomic absorption spectrometry
spellingShingle Unusual calibration curves observed for iron using high-resolution continuum source graphite furnace atomic absorption spectrometry
Welz, Bernhard
High-resolution continuum source AAS
Electrothermal atomization
Iron determination
Calibration graphs
Line wings
title_short Unusual calibration curves observed for iron using high-resolution continuum source graphite furnace atomic absorption spectrometry
title_full Unusual calibration curves observed for iron using high-resolution continuum source graphite furnace atomic absorption spectrometry
title_fullStr Unusual calibration curves observed for iron using high-resolution continuum source graphite furnace atomic absorption spectrometry
title_full_unstemmed Unusual calibration curves observed for iron using high-resolution continuum source graphite furnace atomic absorption spectrometry
title_sort Unusual calibration curves observed for iron using high-resolution continuum source graphite furnace atomic absorption spectrometry
author Welz, Bernhard
author_facet Welz, Bernhard
Santos, Lisia Maria Gobbo dos
Araujo, Rennan Geovanny Oliveira
Jacob, Silvana do C.
Vale, Maria Goreti R.
Okruss, Michael
Ross, Helmut Becker
author_role author
author2 Santos, Lisia Maria Gobbo dos
Araujo, Rennan Geovanny Oliveira
Jacob, Silvana do C.
Vale, Maria Goreti R.
Okruss, Michael
Ross, Helmut Becker
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Welz, Bernhard
Santos, Lisia Maria Gobbo dos
Araujo, Rennan Geovanny Oliveira
Jacob, Silvana do C.
Vale, Maria Goreti R.
Okruss, Michael
Ross, Helmut Becker
Welz, Bernhard
Santos, Lisia Maria Gobbo dos
Araujo, Rennan Geovanny Oliveira
Jacob, Silvana do C.
Vale, Maria Goreti R.
Okruss, Michael
Ross, Helmut Becker
dc.subject.por.fl_str_mv High-resolution continuum source AAS
Electrothermal atomization
Iron determination
Calibration graphs
Line wings
topic High-resolution continuum source AAS
Electrothermal atomization
Iron determination
Calibration graphs
Line wings
description Trabalho completo: acesso restrito, p. 258–262
publishDate 2010
dc.date.issued.fl_str_mv 2010
dc.date.accessioned.fl_str_mv 2012-05-29T13:57:17Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.repositorio.ufba.br/ri/handle/ri/5980
dc.identifier.issn.none.fl_str_mv 0584-8547
dc.identifier.number.pt_BR.fl_str_mv v. 65, n. 3
identifier_str_mv 0584-8547
v. 65, n. 3
url http://www.repositorio.ufba.br/ri/handle/ri/5980
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1016/j.sab.2010.01.007
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
instname:Universidade Federal da Bahia (UFBA)
instacron:UFBA
instname_str Universidade Federal da Bahia (UFBA)
instacron_str UFBA
institution UFBA
reponame_str Repositório Institucional da UFBA
collection Repositório Institucional da UFBA
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