Colorimetric determination of atmospheric nitrogen dioxide using preconcentration on C-18 cartridge.
Autor(a) principal: | |
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Data de Publicação: | 2002 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/195717 |
Resumo: | COLORIMETRIC DETERMINATION OF ATMOSPHERIC NITROGEN DIOXIDE USING PRECONCENTRATION ON C-18 CARTRIDGE, An alternative analytical method for nitrogen dioxide (NO,) in atmosphere was developed. The collection of NO, is performed by a Sep-Pack C-18 cartridge impregnated with 11 % (v/v) of triethanolaminc plus 3,6 % (v/v) of ethylene glycol plus 25 % (v/v) of acetone combined solution. When the impregnating is used, NO2 is collected with good repeatibility (CV 3,3 %). The NO, absorbed in the sampler was stripped from the sorbent with a methanol 5% (v/v) aqueous solution and was determined by colorimetry as nitrite by using the Griess-Saltzman reagent. The detection limit of 1,4 ppb for 60 min sampling at 0,5 L min(-1) flow rate was obtained. Preparation and conditioning procedures for TEA-C-18 cartridge, sampling flow rate, absorption capacity and interference of other species are discussed. |
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Colorimetric determination of atmospheric nitrogen dioxide using preconcentration on C-18 cartridge.nitrogen dioxidetriethanolamineGriess Saltzman reagentCOLORIMETRIC DETERMINATION OF ATMOSPHERIC NITROGEN DIOXIDE USING PRECONCENTRATION ON C-18 CARTRIDGE, An alternative analytical method for nitrogen dioxide (NO,) in atmosphere was developed. The collection of NO, is performed by a Sep-Pack C-18 cartridge impregnated with 11 % (v/v) of triethanolaminc plus 3,6 % (v/v) of ethylene glycol plus 25 % (v/v) of acetone combined solution. When the impregnating is used, NO2 is collected with good repeatibility (CV 3,3 %). The NO, absorbed in the sampler was stripped from the sorbent with a methanol 5% (v/v) aqueous solution and was determined by colorimetry as nitrite by using the Griess-Saltzman reagent. The detection limit of 1,4 ppb for 60 min sampling at 0,5 L min(-1) flow rate was obtained. Preparation and conditioning procedures for TEA-C-18 cartridge, sampling flow rate, absorption capacity and interference of other species are discussed.Univ Estadual Paulista, Inst Quim, Dept Quim Analit, BR-14800900 Araraquara, SP, BrazilUniv Estadual Paulista, Inst Quim, Dept Quim Analit, BR-14800900 Araraquara, SP, BrazilSoc Brasileira QuimicaUniversidade Estadual Paulista (Unesp)Ugucione, C.Neto, J. D.Cardoso, A. A.2020-12-10T18:01:09Z2020-12-10T18:01:09Z2002-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article353-357Quimica Nova. Sao Paulo: Soc Brasileira Quimica, v. 25, n. 3, p. 353-357, 2002.0100-4042http://hdl.handle.net/11449/195717WOS:000175847000002Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporQuimica Novainfo:eu-repo/semantics/openAccess2021-10-23T11:11:09Zoai:repositorio.unesp.br:11449/195717Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:53:58.058683Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Colorimetric determination of atmospheric nitrogen dioxide using preconcentration on C-18 cartridge. |
title |
Colorimetric determination of atmospheric nitrogen dioxide using preconcentration on C-18 cartridge. |
spellingShingle |
Colorimetric determination of atmospheric nitrogen dioxide using preconcentration on C-18 cartridge. Ugucione, C. nitrogen dioxide triethanolamine Griess Saltzman reagent |
title_short |
Colorimetric determination of atmospheric nitrogen dioxide using preconcentration on C-18 cartridge. |
title_full |
Colorimetric determination of atmospheric nitrogen dioxide using preconcentration on C-18 cartridge. |
title_fullStr |
Colorimetric determination of atmospheric nitrogen dioxide using preconcentration on C-18 cartridge. |
title_full_unstemmed |
Colorimetric determination of atmospheric nitrogen dioxide using preconcentration on C-18 cartridge. |
title_sort |
Colorimetric determination of atmospheric nitrogen dioxide using preconcentration on C-18 cartridge. |
author |
Ugucione, C. |
author_facet |
Ugucione, C. Neto, J. D. Cardoso, A. A. |
author_role |
author |
author2 |
Neto, J. D. Cardoso, A. A. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Ugucione, C. Neto, J. D. Cardoso, A. A. |
dc.subject.por.fl_str_mv |
nitrogen dioxide triethanolamine Griess Saltzman reagent |
topic |
nitrogen dioxide triethanolamine Griess Saltzman reagent |
description |
COLORIMETRIC DETERMINATION OF ATMOSPHERIC NITROGEN DIOXIDE USING PRECONCENTRATION ON C-18 CARTRIDGE, An alternative analytical method for nitrogen dioxide (NO,) in atmosphere was developed. The collection of NO, is performed by a Sep-Pack C-18 cartridge impregnated with 11 % (v/v) of triethanolaminc plus 3,6 % (v/v) of ethylene glycol plus 25 % (v/v) of acetone combined solution. When the impregnating is used, NO2 is collected with good repeatibility (CV 3,3 %). The NO, absorbed in the sampler was stripped from the sorbent with a methanol 5% (v/v) aqueous solution and was determined by colorimetry as nitrite by using the Griess-Saltzman reagent. The detection limit of 1,4 ppb for 60 min sampling at 0,5 L min(-1) flow rate was obtained. Preparation and conditioning procedures for TEA-C-18 cartridge, sampling flow rate, absorption capacity and interference of other species are discussed. |
publishDate |
2002 |
dc.date.none.fl_str_mv |
2002-05-01 2020-12-10T18:01:09Z 2020-12-10T18:01:09Z |
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 |
Quimica Nova. Sao Paulo: Soc Brasileira Quimica, v. 25, n. 3, p. 353-357, 2002. 0100-4042 http://hdl.handle.net/11449/195717 WOS:000175847000002 |
identifier_str_mv |
Quimica Nova. Sao Paulo: Soc Brasileira Quimica, v. 25, n. 3, p. 353-357, 2002. 0100-4042 WOS:000175847000002 |
url |
http://hdl.handle.net/11449/195717 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Quimica Nova |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
353-357 |
dc.publisher.none.fl_str_mv |
Soc Brasileira Quimica |
publisher.none.fl_str_mv |
Soc Brasileira Quimica |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128432490414080 |