Determination of mercury in biological samples by cold vapor atomic absorption spectrometry following cloud point extraction with salt-induced phase separation

Detalhes bibliográficos
Autor(a) principal: Dittert, Ingrid M.
Data de Publicação: 2007
Outros Autores: Maranhão, Tatiane A., Borges, Daniel L. G., Vieira, Mariana A., Welz, Bernhard, Curtius, Adilson José
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://repositorio.ufba.br/ri/handle/ri/14402
Resumo: Texto completo: acesso restrito. p. 1786-1790
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spelling Dittert, Ingrid M.Maranhão, Tatiane A.Borges, Daniel L. G.Vieira, Mariana A.Welz, BernhardCurtius, Adilson JoséDittert, Ingrid M.Maranhão, Tatiane A.Borges, Daniel L. G.Vieira, Mariana A.Welz, BernhardCurtius, Adilson José2014-01-21T14:34:56Z20070039-9140http://repositorio.ufba.br/ri/handle/ri/14402v. 72, n. 5Texto completo: acesso restrito. p. 1786-1790Method development for the pre-concentration of mercury in human hair, dogfish liver and dogfish muscle samples using cloud-point extraction and cold vapor atomic absorption spectrometry is demonstrated. Before the extraction, the samples were submitted to microwave-assisted digestion in a mixture of H2O2 and HNO3. Cloud point extraction was carried out using 0.5% (m/v) ammonium O,O-diethyldithiophosphate (DDTP) as the chelating agent and 0.3% (m/v) Triton X-114 as the non-ionic surfactant. Phase separation was induced after the addition of Na2SO4 to a final concentration of 0.2 mol L−1. Aliquots of the final extract were transferred to PTFE tubes and NaBH4 and HCl were added. The mercury vapor was driven to a non-heated quartz tube for measuring the absorbance. The results obtained with salt-induced phase separation were in good agreement with the certified values at a 95% confidence level. An enrichment factor of 10 allowed a detection limit of 0.4 ng g−1 to be obtained, which demonstrates the high sensitivity of the proposed procedure for the determination of mercury at trace levels.Submitted by Suelen Reis (suziy.ellen@gmail.com) on 2014-01-21T14:34:56Z No. of bitstreams: 1 1-s2.0-S0039914007001403-main.pdf: 329054 bytes, checksum: ab0e141db2c1e3f157358f5a0dadd820 (MD5)Made available in DSpace on 2014-01-21T14:34:56Z (GMT). No. of bitstreams: 1 1-s2.0-S0039914007001403-main.pdf: 329054 bytes, checksum: ab0e141db2c1e3f157358f5a0dadd820 (MD5) Previous issue date: 2007http://dx.doi.org/10.1016/j.talanta.2007.02.012reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBACloud point extractionCold vapor atomic absorption spectrometryMercuryBiological samplesO,O-diethyl dithiophosphateTriton X-114Determination of mercury in biological samples by cold vapor atomic absorption spectrometry following cloud point extraction with salt-induced phase separationTalantainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01info:eu-repo/semantics/openAccessengORIGINAL1-s2.0-S0039914007001403-main.pdf1-s2.0-S0039914007001403-main.pdfapplication/pdf329054https://repositorio.ufba.br/bitstream/ri/14402/1/1-s2.0-S0039914007001403-main.pdfab0e141db2c1e3f157358f5a0dadd820MD51LICENSElicense.txtlicense.txttext/plain1345https://repositorio.ufba.br/bitstream/ri/14402/2/license.txtff6eaa8b858ea317fded99f125f5fcd0MD52TEXT1-s2.0-S0039914007001403-main.pdf.txt1-s2.0-S0039914007001403-main.pdf.txtExtracted texttext/plain21675https://repositorio.ufba.br/bitstream/ri/14402/3/1-s2.0-S0039914007001403-main.pdf.txt1be8ff09a823b98f16233b57a4eee8beMD53ri/144022022-07-05 14:03:17.027oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:17Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Determination of mercury in biological samples by cold vapor atomic absorption spectrometry following cloud point extraction with salt-induced phase separation
dc.title.alternative.pt_BR.fl_str_mv Talanta
title Determination of mercury in biological samples by cold vapor atomic absorption spectrometry following cloud point extraction with salt-induced phase separation
spellingShingle Determination of mercury in biological samples by cold vapor atomic absorption spectrometry following cloud point extraction with salt-induced phase separation
Dittert, Ingrid M.
Cloud point extraction
Cold vapor atomic absorption spectrometry
Mercury
Biological samples
O,O-diethyl dithiophosphate
Triton X-114
title_short Determination of mercury in biological samples by cold vapor atomic absorption spectrometry following cloud point extraction with salt-induced phase separation
title_full Determination of mercury in biological samples by cold vapor atomic absorption spectrometry following cloud point extraction with salt-induced phase separation
title_fullStr Determination of mercury in biological samples by cold vapor atomic absorption spectrometry following cloud point extraction with salt-induced phase separation
title_full_unstemmed Determination of mercury in biological samples by cold vapor atomic absorption spectrometry following cloud point extraction with salt-induced phase separation
title_sort Determination of mercury in biological samples by cold vapor atomic absorption spectrometry following cloud point extraction with salt-induced phase separation
author Dittert, Ingrid M.
author_facet Dittert, Ingrid M.
Maranhão, Tatiane A.
Borges, Daniel L. G.
Vieira, Mariana A.
Welz, Bernhard
Curtius, Adilson José
author_role author
author2 Maranhão, Tatiane A.
Borges, Daniel L. G.
Vieira, Mariana A.
Welz, Bernhard
Curtius, Adilson José
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Dittert, Ingrid M.
Maranhão, Tatiane A.
Borges, Daniel L. G.
Vieira, Mariana A.
Welz, Bernhard
Curtius, Adilson José
Dittert, Ingrid M.
Maranhão, Tatiane A.
Borges, Daniel L. G.
Vieira, Mariana A.
Welz, Bernhard
Curtius, Adilson José
dc.subject.por.fl_str_mv Cloud point extraction
Cold vapor atomic absorption spectrometry
Mercury
Biological samples
O,O-diethyl dithiophosphate
Triton X-114
topic Cloud point extraction
Cold vapor atomic absorption spectrometry
Mercury
Biological samples
O,O-diethyl dithiophosphate
Triton X-114
description Texto completo: acesso restrito. p. 1786-1790
publishDate 2007
dc.date.issued.fl_str_mv 2007
dc.date.accessioned.fl_str_mv 2014-01-21T14:34:56Z
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/14402
dc.identifier.issn.none.fl_str_mv 0039-9140
dc.identifier.number.pt_BR.fl_str_mv v. 72, n. 5
identifier_str_mv 0039-9140
v. 72, n. 5
url http://repositorio.ufba.br/ri/handle/ri/14402
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/10.1016/j.talanta.2007.02.012
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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