Optimization of parameters of sampling and determination of reduced sulfur compounds using cryogenic capture and gas chromatography in tropical urban atmosphere

Detalhes bibliográficos
Autor(a) principal: Campos, Vânia Palmeira
Data de Publicação: 2010
Outros Autores: Oliveira, Adriana S., Cruz, Lícia Passos dos Santos, Borges, Jomar, Tavares, Tânia Mascarenhas
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/12111
Resumo: Texto completo: acesso restrito. p.283-289
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spelling Campos, Vânia PalmeiraOliveira, Adriana S.Cruz, Lícia Passos dos SantosBorges, JomarTavares, Tânia MascarenhasCampos, Vânia PalmeiraOliveira, Adriana S.Cruz, Lícia Passos dos SantosBorges, JomarTavares, Tânia Mascarenhas2013-07-04T17:28:19Z20100026-265Xhttp://www.repositorio.ufba.br/ri/handle/ri/12111v. 96, n. 2Texto completo: acesso restrito. p.283-289Reduced sulfur compounds, RSCs (H2S, COS, CH3SH, CH3SCH3, CS2 and CH3S2CH3) play a role in global cycle and acid rain formation. At trace levels RSCs in air are difficult to collect, store and analyze because of their highly adsorptive and reactive properties. This work optimizes parameters of sampling and instrumental determination of RSCs for urban measurements. The method used is based on cryogenic sampling and gas chromatography provided with a cryofocusing trap and flame photometric detection. Greater sampling efficiency was obtained with liquid argon as freezing fluid and air flow rate of 150 mL min− 1 for two hours. Best results have been obtained with preconcentration for 3 min and injection volume of 3 ml. For H2S, CH3SH and CH3S2CH3 the method showed a precision of 89%, limit of detection of 0.10 µg m− 3 and limit of quantification 0.3 µg m− 3. For CH3SCH3 and CS2 the corresponding values were 89%, 0.15 µg m− 3 and 0.5 µg m− 3 and for COS were 75%, 0.18 µg m− 3 and 0.8 µg m− 3 respectively. Sampling efficiency varied between 70–80% for all the RSCs. Accuracy of H2S from field measurements obtained with parallel measurements using a continuous monitor varied between 88 and 98%. The optimized methodology proved to be suitable for field measurements in urban tropical atmospheres with different characteristics.Submitted by Suelen Reis (suziy.ellen@gmail.com) on 2013-07-04T17:28:19Z No. of bitstreams: 1 1-s2.0-S0026265X10000913-main.pdf: 726869 bytes, checksum: bc4a97200cd1fec33a146682c60c4f43 (MD5)Made available in DSpace on 2013-07-04T17:28:19Z (GMT). No. of bitstreams: 1 1-s2.0-S0026265X10000913-main.pdf: 726869 bytes, checksum: bc4a97200cd1fec33a146682c60c4f43 (MD5) Previous issue date: 2010http://dx.doi.org.ez10.periodicos.capes.gov.br/10.1016/j.microc.2010.04.003reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAReduced sulfur compoundsCryogenic captureGas chromatographyAtmosphereOptimization of parameters of sampling and determination of reduced sulfur compounds using cryogenic capture and gas chromatography in tropical urban atmosphereMicrochemical Journalinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01enginfo:eu-repo/semantics/openAccessORIGINAL1-s2.0-S0026265X10000913-main.pdf1-s2.0-S0026265X10000913-main.pdfapplication/pdf726869https://repositorio.ufba.br/bitstream/ri/12111/1/1-s2.0-S0026265X10000913-main.pdfbc4a97200cd1fec33a146682c60c4f43MD51LICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/12111/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52TEXT1-s2.0-S0026265X10000913-main.pdf.txt1-s2.0-S0026265X10000913-main.pdf.txtExtracted texttext/plain33984https://repositorio.ufba.br/bitstream/ri/12111/3/1-s2.0-S0026265X10000913-main.pdf.txt863581efdb5b01f47299dc8e5cb3afd9MD53ri/121112022-08-08 13:17:41.306oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-08-08T16:17:41Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Optimization of parameters of sampling and determination of reduced sulfur compounds using cryogenic capture and gas chromatography in tropical urban atmosphere
dc.title.alternative.pt_BR.fl_str_mv Microchemical Journal
title Optimization of parameters of sampling and determination of reduced sulfur compounds using cryogenic capture and gas chromatography in tropical urban atmosphere
spellingShingle Optimization of parameters of sampling and determination of reduced sulfur compounds using cryogenic capture and gas chromatography in tropical urban atmosphere
Campos, Vânia Palmeira
Reduced sulfur compounds
Cryogenic capture
Gas chromatography
Atmosphere
title_short Optimization of parameters of sampling and determination of reduced sulfur compounds using cryogenic capture and gas chromatography in tropical urban atmosphere
title_full Optimization of parameters of sampling and determination of reduced sulfur compounds using cryogenic capture and gas chromatography in tropical urban atmosphere
title_fullStr Optimization of parameters of sampling and determination of reduced sulfur compounds using cryogenic capture and gas chromatography in tropical urban atmosphere
title_full_unstemmed Optimization of parameters of sampling and determination of reduced sulfur compounds using cryogenic capture and gas chromatography in tropical urban atmosphere
title_sort Optimization of parameters of sampling and determination of reduced sulfur compounds using cryogenic capture and gas chromatography in tropical urban atmosphere
author Campos, Vânia Palmeira
author_facet Campos, Vânia Palmeira
Oliveira, Adriana S.
Cruz, Lícia Passos dos Santos
Borges, Jomar
Tavares, Tânia Mascarenhas
author_role author
author2 Oliveira, Adriana S.
Cruz, Lícia Passos dos Santos
Borges, Jomar
Tavares, Tânia Mascarenhas
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Campos, Vânia Palmeira
Oliveira, Adriana S.
Cruz, Lícia Passos dos Santos
Borges, Jomar
Tavares, Tânia Mascarenhas
Campos, Vânia Palmeira
Oliveira, Adriana S.
Cruz, Lícia Passos dos Santos
Borges, Jomar
Tavares, Tânia Mascarenhas
dc.subject.por.fl_str_mv Reduced sulfur compounds
Cryogenic capture
Gas chromatography
Atmosphere
topic Reduced sulfur compounds
Cryogenic capture
Gas chromatography
Atmosphere
description Texto completo: acesso restrito. p.283-289
publishDate 2010
dc.date.issued.fl_str_mv 2010
dc.date.accessioned.fl_str_mv 2013-07-04T17:28:19Z
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/12111
dc.identifier.issn.none.fl_str_mv 0026-265X
dc.identifier.number.pt_BR.fl_str_mv v. 96, n. 2
identifier_str_mv 0026-265X
v. 96, n. 2
url http://www.repositorio.ufba.br/ri/handle/ri/12111
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.ez10.periodicos.capes.gov.br/10.1016/j.microc.2010.04.003
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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