On-line simultaneous pre-concentration procedure for the determination of cadmium and lead in drinking water employing sequential multi-element flame atomic absorption spectrometry

Detalhes bibliográficos
Autor(a) principal: Santos, João Victor da Silva
Data de Publicação: 2011
Outros Autores: Silva, O. B., Araújo, André S., Lemos, Valfredo Azevedo, Miró, Manuel, Ferreira, Sergio Luis Costa, Santos, Walter Nei Lopes dos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://repositorio.ufba.br/ri/handle/ri/14624
Resumo: Texto completo: acesso restrito. p. 1425-1435
id UFBA-2_d9e43b522c98d8f2614dcd4e29be15f2
oai_identifier_str oai:repositorio.ufba.br:ri/14624
network_acronym_str UFBA-2
network_name_str Repositório Institucional da UFBA
repository_id_str 1932
spelling Santos, João Victor da SilvaSilva, O. B.Araújo, André S.Lemos, Valfredo AzevedoMiró, ManuelFerreira, Sergio Luis CostaSantos, Walter Nei Lopes dosSantos, João Victor da SilvaSilva, O. B.Araújo, André S.Lemos, Valfredo AzevedoMiró, ManuelFerreira, Sergio Luis CostaSantos, Walter Nei Lopes dos2014-02-17T11:50:11Z20110306-7319http://repositorio.ufba.br/ri/handle/ri/14624v. 91, n. 15Texto completo: acesso restrito. p. 1425-1435An on-line pre-concentration system for the sequential determination of cadmium and lead in drinking water by using fast sequential flame atomic absorption spectrometry (FS-FAAS) is proposed in this paper. Two minicolums of polyurethane foam loaded with 2-(6-methyl-2-benzothiazolylazo)-orcinol (Me-BTAO) were used as sorptive pre-concentration media for cadmium and lead. The analytical procedure involves the quantitative uptake of both analyte species by on-column chelation with Me-BTAO during sample loading followed by sequential elution of the analytes with 1.0 mol L−1 hydrochloric acid and determination by FS-FAAS. The optimisation of the entire analytical procedure was performed using a Box–Behnken multivariate design utilising the sampling flow rate, sample pH and buffer concentration as experimental variables. The proposed flow-based method featured detection limits (3σ) of 0.08 and 0.51 µg L−1 for cadmium and lead, respectively, precision expressed as relative standard deviation (RSD) of 1.63% and 3.87% (n = 7) for cadmium at the 2.0 µg L−1 and 10.0 µg L−1 levels, respectively, and RSD of 6.34% and 3.26% (n = 7) for lead at the 5.0 µg L−1 and 30.0 µg L−1 levels, respectively. The enrichment factors achieved were 38.6 and 30.0 for cadmium and lead, respectively, using a sample volume of 10.0 mL. The sampling frequency was 45 samples per hour. The accuracy was confirmed by analysis of a certified reference material, namely, SRM 1643d (Trace elements in natural water). The optimised method was applied to the determination of cadmium and lead in drinking water samples collected in Santo Amaro da Purificação City, Bahia, Brazil.Submitted by Edileide Reis (leyde-landy@hotmail.com) on 2014-02-17T11:50:11Z No. of bitstreams: 1 João V.S. Santos.pdf: 391476 bytes, checksum: 298feaca47b6eb4fc1983898e28c59e3 (MD5)Made available in DSpace on 2014-02-17T11:50:11Z (GMT). No. of bitstreams: 1 João V.S. Santos.pdf: 391476 bytes, checksum: 298feaca47b6eb4fc1983898e28c59e3 (MD5) Previous issue date: 2011http://dx.doi.org/ 10.1080/03067310903359500reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAOn-line pre-concentrationSequential determination,Cadmium leadDrinking waterFlame atomic absorption spectrometryOn-line simultaneous pre-concentration procedure for the determination of cadmium and lead in drinking water employing sequential multi-element flame atomic absorption spectrometryInternational Journal of Environmental Analytical Chemistryinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01info:eu-repo/semantics/openAccessengORIGINALJoão V.S. Santos.pdfJoão V.S. Santos.pdfapplication/pdf391476https://repositorio.ufba.br/bitstream/ri/14624/1/Jo%c3%a3o%20V.S.%20Santos.pdf298feaca47b6eb4fc1983898e28c59e3MD51LICENSElicense.txtlicense.txttext/plain1345https://repositorio.ufba.br/bitstream/ri/14624/2/license.txtff6eaa8b858ea317fded99f125f5fcd0MD52TEXTJoão V.S. Santos.pdf.txtJoão V.S. Santos.pdf.txtExtracted texttext/plain31935https://repositorio.ufba.br/bitstream/ri/14624/3/Jo%c3%a3o%20V.S.%20Santos.pdf.txtadf5eb7ce720b0681237e017b0e3a6c2MD53ri/146242022-07-05 14:03:34.358oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:34Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv On-line simultaneous pre-concentration procedure for the determination of cadmium and lead in drinking water employing sequential multi-element flame atomic absorption spectrometry
dc.title.alternative.pt_BR.fl_str_mv International Journal of Environmental Analytical Chemistry
title On-line simultaneous pre-concentration procedure for the determination of cadmium and lead in drinking water employing sequential multi-element flame atomic absorption spectrometry
spellingShingle On-line simultaneous pre-concentration procedure for the determination of cadmium and lead in drinking water employing sequential multi-element flame atomic absorption spectrometry
Santos, João Victor da Silva
On-line pre-concentration
Sequential determination,
Cadmium lead
Drinking water
Flame atomic absorption spectrometry
title_short On-line simultaneous pre-concentration procedure for the determination of cadmium and lead in drinking water employing sequential multi-element flame atomic absorption spectrometry
title_full On-line simultaneous pre-concentration procedure for the determination of cadmium and lead in drinking water employing sequential multi-element flame atomic absorption spectrometry
title_fullStr On-line simultaneous pre-concentration procedure for the determination of cadmium and lead in drinking water employing sequential multi-element flame atomic absorption spectrometry
title_full_unstemmed On-line simultaneous pre-concentration procedure for the determination of cadmium and lead in drinking water employing sequential multi-element flame atomic absorption spectrometry
title_sort On-line simultaneous pre-concentration procedure for the determination of cadmium and lead in drinking water employing sequential multi-element flame atomic absorption spectrometry
author Santos, João Victor da Silva
author_facet Santos, João Victor da Silva
Silva, O. B.
Araújo, André S.
Lemos, Valfredo Azevedo
Miró, Manuel
Ferreira, Sergio Luis Costa
Santos, Walter Nei Lopes dos
author_role author
author2 Silva, O. B.
Araújo, André S.
Lemos, Valfredo Azevedo
Miró, Manuel
Ferreira, Sergio Luis Costa
Santos, Walter Nei Lopes dos
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Santos, João Victor da Silva
Silva, O. B.
Araújo, André S.
Lemos, Valfredo Azevedo
Miró, Manuel
Ferreira, Sergio Luis Costa
Santos, Walter Nei Lopes dos
Santos, João Victor da Silva
Silva, O. B.
Araújo, André S.
Lemos, Valfredo Azevedo
Miró, Manuel
Ferreira, Sergio Luis Costa
Santos, Walter Nei Lopes dos
dc.subject.por.fl_str_mv On-line pre-concentration
Sequential determination,
Cadmium lead
Drinking water
Flame atomic absorption spectrometry
topic On-line pre-concentration
Sequential determination,
Cadmium lead
Drinking water
Flame atomic absorption spectrometry
description Texto completo: acesso restrito. p. 1425-1435
publishDate 2011
dc.date.issued.fl_str_mv 2011
dc.date.accessioned.fl_str_mv 2014-02-17T11:50:11Z
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/14624
dc.identifier.issn.none.fl_str_mv 0306-7319
dc.identifier.number.pt_BR.fl_str_mv v. 91, n. 15
identifier_str_mv 0306-7319
v. 91, n. 15
url http://repositorio.ufba.br/ri/handle/ri/14624
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.source.pt_BR.fl_str_mv http://dx.doi.org/ 10.1080/03067310903359500
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
bitstream.url.fl_str_mv https://repositorio.ufba.br/bitstream/ri/14624/1/Jo%c3%a3o%20V.S.%20Santos.pdf
https://repositorio.ufba.br/bitstream/ri/14624/2/license.txt
https://repositorio.ufba.br/bitstream/ri/14624/3/Jo%c3%a3o%20V.S.%20Santos.pdf.txt
bitstream.checksum.fl_str_mv 298feaca47b6eb4fc1983898e28c59e3
ff6eaa8b858ea317fded99f125f5fcd0
adf5eb7ce720b0681237e017b0e3a6c2
bitstream.checksumAlgorithm.fl_str_mv MD5
MD5
MD5
repository.name.fl_str_mv Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)
repository.mail.fl_str_mv
_version_ 1808459472055566336

Registros relacionados