Strontium mono-chloride — A new molecule for the determination of chlorine using high-resolution graphite furnace molecular absorption spectrometry and direct solid sample analysis

Detalhes bibliográficos
Autor(a) principal: Pereira, Éderson R.
Data de Publicação: 2014
Outros Autores: Welz, Bernhard, Lopez, Alfredo H. D., Gois, Jefferson S. de, Caramori, Giovanni Finoto, Borges, Daniel L. G., Carasek, Eduardo, Andrade, Jailson Bittencourt de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://repositorio.ufba.br/ri/handle/ri/17274
Resumo: Texto completo: acesso restrito. p.1–6
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spelling Pereira, Éderson R.Welz, BernhardLopez, Alfredo H. D.Gois, Jefferson S. deCaramori, Giovanni FinotoBorges, Daniel L. G.Carasek, EduardoAndrade, Jailson Bittencourt dePereira, Éderson R.Welz, BernhardLopez, Alfredo H. D.Gois, Jefferson S. deCaramori, Giovanni FinotoBorges, Daniel L. G.Carasek, EduardoAndrade, Jailson Bittencourt de2015-03-24T13:02:32Z2015-03-24T13:02:32Z20140584-8547http://repositorio.ufba.br/ri/handle/ri/17274v. 102, n. 1Texto completo: acesso restrito. p.1–6A new method has been developed for the determination of chlorine in biological reference materials using high-resolution continuum source graphite furnace molecular absorption spectrometry (HR-CS GF MAS) of the strontium mono-chloride (SrCl) molecule and direct solid sample analysis. The use of the SrCl molecule for high-temperature MAS was not described up to now in the literature. Preliminary time-dependent density functional theory calculations of the SrCl structure were carried out in order to obtain reasonable estimates of the absorption spectrum of the target molecule. The calculations, which were carried out at BHandHLyp/def2-QZVP level of theory, proved a very accurate and inexpensive way to get information about the spectrum of the SrCl molecule, which enabled us to perform the Cl determination with good sensitivity and specificity. The molecular absorption of the SrCl molecule has been measured using the wavelength at 635.862 nm, and zirconium and palladium have been evaluated as the chemical modifiers in order to increase the sensitivity of the gaseous SrCl molecule generated in the graphite furnace. The pyrolysis and vaporization temperatures were 600 °C and 2300 °C, respectively. Accuracy and precision of the method have been evaluated using biological certified reference materials of both animal and plant origins, showing good agreement with the informed and certified values. Limit of detection and characteristic mass were 1.0 and 2.2 ng, respectively. The results found using HR-CS GF MAS were in agreement (95% confidence level) compared to those obtained by electrothermal vaporization-inductively coupled plasma mass spectrometry.Submitted by Edileide Reis (leyde-landy@hotmail.com) on 2015-03-24T13:02:32Z No. of bitstreams: 1 Éderson R. Pereira.pdf: 520174 bytes, checksum: 30d4ae7e4ceb45fd3b3cb2ea2430b63f (MD5)Made available in DSpace on 2015-03-24T13:02:32Z (GMT). No. of bitstreams: 1 Éderson R. Pereira.pdf: 520174 bytes, checksum: 30d4ae7e4ceb45fd3b3cb2ea2430b63f (MD5) Previous issue date: 2014http://dx.doi.org/10.1016/j.sab.2014.09.018reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAChlorine determinationBiological samplesHR-CS GF MASDirect solid sample analysisTD-DFT calculationStrontium mono-chloride — A new molecule for the determination of chlorine using high-resolution graphite furnace molecular absorption spectrometry and direct solid sample analysisSpectrochimica Acta Part B: Atomic Spectroscopyinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleBrasilinfo:eu-repo/semantics/openAccessengORIGINALÉderson R. Pereira.pdfÉderson R. Pereira.pdfapplication/pdf520174https://repositorio.ufba.br/bitstream/ri/17274/1/%c3%89derson%20R.%20Pereira.pdf30d4ae7e4ceb45fd3b3cb2ea2430b63fMD51LICENSElicense.txtlicense.txttext/plain1345https://repositorio.ufba.br/bitstream/ri/17274/2/license.txtff6eaa8b858ea317fded99f125f5fcd0MD52TEXTÉderson R. Pereira.pdf.txtÉderson R. 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dc.title.pt_BR.fl_str_mv Strontium mono-chloride — A new molecule for the determination of chlorine using high-resolution graphite furnace molecular absorption spectrometry and direct solid sample analysis
dc.title.alternative.pt_BR.fl_str_mv Spectrochimica Acta Part B: Atomic Spectroscopy
title Strontium mono-chloride — A new molecule for the determination of chlorine using high-resolution graphite furnace molecular absorption spectrometry and direct solid sample analysis
spellingShingle Strontium mono-chloride — A new molecule for the determination of chlorine using high-resolution graphite furnace molecular absorption spectrometry and direct solid sample analysis
Pereira, Éderson R.
Chlorine determination
Biological samples
HR-CS GF MAS
Direct solid sample analysis
TD-DFT calculation
title_short Strontium mono-chloride — A new molecule for the determination of chlorine using high-resolution graphite furnace molecular absorption spectrometry and direct solid sample analysis
title_full Strontium mono-chloride — A new molecule for the determination of chlorine using high-resolution graphite furnace molecular absorption spectrometry and direct solid sample analysis
title_fullStr Strontium mono-chloride — A new molecule for the determination of chlorine using high-resolution graphite furnace molecular absorption spectrometry and direct solid sample analysis
title_full_unstemmed Strontium mono-chloride — A new molecule for the determination of chlorine using high-resolution graphite furnace molecular absorption spectrometry and direct solid sample analysis
title_sort Strontium mono-chloride — A new molecule for the determination of chlorine using high-resolution graphite furnace molecular absorption spectrometry and direct solid sample analysis
author Pereira, Éderson R.
author_facet Pereira, Éderson R.
Welz, Bernhard
Lopez, Alfredo H. D.
Gois, Jefferson S. de
Caramori, Giovanni Finoto
Borges, Daniel L. G.
Carasek, Eduardo
Andrade, Jailson Bittencourt de
author_role author
author2 Welz, Bernhard
Lopez, Alfredo H. D.
Gois, Jefferson S. de
Caramori, Giovanni Finoto
Borges, Daniel L. G.
Carasek, Eduardo
Andrade, Jailson Bittencourt de
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Pereira, Éderson R.
Welz, Bernhard
Lopez, Alfredo H. D.
Gois, Jefferson S. de
Caramori, Giovanni Finoto
Borges, Daniel L. G.
Carasek, Eduardo
Andrade, Jailson Bittencourt de
Pereira, Éderson R.
Welz, Bernhard
Lopez, Alfredo H. D.
Gois, Jefferson S. de
Caramori, Giovanni Finoto
Borges, Daniel L. G.
Carasek, Eduardo
Andrade, Jailson Bittencourt de
dc.subject.por.fl_str_mv Chlorine determination
Biological samples
HR-CS GF MAS
Direct solid sample analysis
TD-DFT calculation
topic Chlorine determination
Biological samples
HR-CS GF MAS
Direct solid sample analysis
TD-DFT calculation
description Texto completo: acesso restrito. p.1–6
publishDate 2014
dc.date.issued.fl_str_mv 2014
dc.date.accessioned.fl_str_mv 2015-03-24T13:02:32Z
dc.date.available.fl_str_mv 2015-03-24T13:02:32Z
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://repositorio.ufba.br/ri/handle/ri/17274
dc.identifier.issn.none.fl_str_mv 0584-8547
dc.identifier.number.pt_BR.fl_str_mv v. 102, n. 1
identifier_str_mv 0584-8547
v. 102, n. 1
url http://repositorio.ufba.br/ri/handle/ri/17274
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.country.fl_str_mv Brasil
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1016/j.sab.2014.09.018
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
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