Non-aromatic hydrocarbons in recent sediments of Sepetiba and Ilha Grande Bays, Brazil

Detalhes bibliográficos
Autor(a) principal: Figueiredo,Luis H. M.
Data de Publicação: 2008
Outros Autores: Wagener,Angela de L. R., Dagaut,Jacques, Saliot,Alain
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Chemical Society (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532008000300020
Resumo: An investigation was conducted in Ilha Grande and Sepetiba Bays aiming at identifying the nature of non-aromatic hydrocarbons (NAH) in surface sediments. NAH concentrations ranged from 2.5 µg g-1 to 193.8 µg g-1 of which the major fraction (53 to 93%) was composed by unresolved complex mixture (UMC). In most samples n-alkane distribution was dominated by compounds of odd carbon number showing maxima in nC29 and nC31. Mono-olefins were at low concentrations and the polyolefins including highly branched isoprenoids and squalene varied from 0.099 µg g-1 to 1.387 µg g-1 with lower values relative to NAH appearing in areas of strong terrestrial and anthropogenic influence. Hopanes between C27 and C33 were observed in all samples with the predominant configuration 17a(H),21b(H), characteristic of a petrogenic origin.
id SBQ-2_29cd689b0dd6b4fd2206afafb2bbf204
oai_identifier_str oai:scielo:S0103-50532008000300020
network_acronym_str SBQ-2
network_name_str Journal of the Brazilian Chemical Society (Online)
repository_id_str
spelling Non-aromatic hydrocarbons in recent sediments of Sepetiba and Ilha Grande Bays, Brazilnon-aromatic hydrocarbonssedimentsIlha Grande BaySepetiba BayAn investigation was conducted in Ilha Grande and Sepetiba Bays aiming at identifying the nature of non-aromatic hydrocarbons (NAH) in surface sediments. NAH concentrations ranged from 2.5 µg g-1 to 193.8 µg g-1 of which the major fraction (53 to 93%) was composed by unresolved complex mixture (UMC). In most samples n-alkane distribution was dominated by compounds of odd carbon number showing maxima in nC29 and nC31. Mono-olefins were at low concentrations and the polyolefins including highly branched isoprenoids and squalene varied from 0.099 µg g-1 to 1.387 µg g-1 with lower values relative to NAH appearing in areas of strong terrestrial and anthropogenic influence. Hopanes between C27 and C33 were observed in all samples with the predominant configuration 17a(H),21b(H), characteristic of a petrogenic origin.Sociedade Brasileira de Química2008-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532008000300020Journal of the Brazilian Chemical Society v.19 n.3 2008reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532008000300020info:eu-repo/semantics/openAccessFigueiredo,Luis H. M.Wagener,Angela de L. R.Dagaut,JacquesSaliot,Alaineng2008-05-27T00:00:00Zoai:scielo:S0103-50532008000300020Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2008-05-27T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Non-aromatic hydrocarbons in recent sediments of Sepetiba and Ilha Grande Bays, Brazil
title Non-aromatic hydrocarbons in recent sediments of Sepetiba and Ilha Grande Bays, Brazil
spellingShingle Non-aromatic hydrocarbons in recent sediments of Sepetiba and Ilha Grande Bays, Brazil
Figueiredo,Luis H. M.
non-aromatic hydrocarbons
sediments
Ilha Grande Bay
Sepetiba Bay
title_short Non-aromatic hydrocarbons in recent sediments of Sepetiba and Ilha Grande Bays, Brazil
title_full Non-aromatic hydrocarbons in recent sediments of Sepetiba and Ilha Grande Bays, Brazil
title_fullStr Non-aromatic hydrocarbons in recent sediments of Sepetiba and Ilha Grande Bays, Brazil
title_full_unstemmed Non-aromatic hydrocarbons in recent sediments of Sepetiba and Ilha Grande Bays, Brazil
title_sort Non-aromatic hydrocarbons in recent sediments of Sepetiba and Ilha Grande Bays, Brazil
author Figueiredo,Luis H. M.
author_facet Figueiredo,Luis H. M.
Wagener,Angela de L. R.
Dagaut,Jacques
Saliot,Alain
author_role author
author2 Wagener,Angela de L. R.
Dagaut,Jacques
Saliot,Alain
author2_role author
author
author
dc.contributor.author.fl_str_mv Figueiredo,Luis H. M.
Wagener,Angela de L. R.
Dagaut,Jacques
Saliot,Alain
dc.subject.por.fl_str_mv non-aromatic hydrocarbons
sediments
Ilha Grande Bay
Sepetiba Bay
topic non-aromatic hydrocarbons
sediments
Ilha Grande Bay
Sepetiba Bay
description An investigation was conducted in Ilha Grande and Sepetiba Bays aiming at identifying the nature of non-aromatic hydrocarbons (NAH) in surface sediments. NAH concentrations ranged from 2.5 µg g-1 to 193.8 µg g-1 of which the major fraction (53 to 93%) was composed by unresolved complex mixture (UMC). In most samples n-alkane distribution was dominated by compounds of odd carbon number showing maxima in nC29 and nC31. Mono-olefins were at low concentrations and the polyolefins including highly branched isoprenoids and squalene varied from 0.099 µg g-1 to 1.387 µg g-1 with lower values relative to NAH appearing in areas of strong terrestrial and anthropogenic influence. Hopanes between C27 and C33 were observed in all samples with the predominant configuration 17a(H),21b(H), characteristic of a petrogenic origin.
publishDate 2008
dc.date.none.fl_str_mv 2008-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532008000300020
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532008000300020
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-50532008000300020
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Journal of the Brazilian Chemical Society v.19 n.3 2008
reponame:Journal of the Brazilian Chemical Society (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Journal of the Brazilian Chemical Society (Online)
collection Journal of the Brazilian Chemical Society (Online)
repository.name.fl_str_mv Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv ||office@jbcs.sbq.org.br
_version_ 1750318168659722240

Registros relacionados