Publicação
Determination of metal impurities in carbon nanotubes by direct solid sampling electrothermal atomic absorption spectrometry
| Resumo: | Metal impurities (Al, Cd, Co, Cr, Cu, Mg, Mn and Pb) were determined in carbon nanotubes (CNTs) by direct solid sampling electrothermal atomic absorption spectrometry (DSS-ET AAS, deuterium lamp background corrector). Parameters as pyrolysis and atomization temperatures, use of Pd as chemical modifier, feasibility of calibration using aqueous standard solutions and maximum sample mass were investigated. Results obtained by the proposed method were compared with those obtained by neutron activation analysis (NAA) and also by inductively coupled plasma mass spectrometry (ICP-MS) and inductively coupled plasma optical emission spectrometry (ICP OES) after high-pressure microwave assisted wet digestion and microwave-induced combustion methods. No significant differences were observed between the results obtained by DSS-ET AAS, ICP-MS and ICP OES after both digestion methods and also by NAA. Calibration was performed using aqueous standards. Background signals were always lower than 0.02 (peak height) and no chemical modifier was used. The proposed method allowed the determination of all elements in CNTs with lower limits of detection in comparison with other techniques. |
|---|---|
| Autores principais: | Mello,Paola A. |
| Outros Autores: | Rodrigues,Luiz Frederico; Nunes,Matheus A. G.; Mattos,Julio Cezar P.; Müller,Edson I.; Dressler,Valderi L.; Flores,Erico M. M. |
| Assunto: | carbon nanotubes metal impurities solid sampling electrothermal atomic absorption spectrometry |
| Ano: | 2011 |
| País: | Brasil |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | IBICT |
| Idioma: | inglês |
| Origem: | Oasisbr |
| _version_ | 1871506606907195392 |
|---|---|
| author | Mello,Paola A. |
| author2 | Rodrigues,Luiz Frederico Nunes,Matheus A. G. Mattos,Julio Cezar P. Müller,Edson I. Dressler,Valderi L. Flores,Erico M. M. |
| author2_role | author author author author author author |
| author_facet | Mello,Paola A. Rodrigues,Luiz Frederico Nunes,Matheus A. G. Mattos,Julio Cezar P. Müller,Edson I. Dressler,Valderi L. Flores,Erico M. M. |
| author_role | author |
| country_str | BR |
| creators_json_txt | [{\"Person.name\":\"Mello,Paola A.\"},{\"Person.name\":\"Rodrigues,Luiz Frederico\"},{\"Person.name\":\"Nunes,Matheus A. G.\"},{\"Person.name\":\"Mattos,Julio Cezar P.\"},{\"Person.name\":\"Müller,Edson I.\"},{\"Person.name\":\"Dressler,Valderi L.\"},{\"Person.name\":\"Flores,Erico M. M.\"}] |
| datacite.creators.creator.creatorName.fl_str_mv | Mello,Paola A. Rodrigues,Luiz Frederico Nunes,Matheus A. G. Mattos,Julio Cezar P. Müller,Edson I. Dressler,Valderi L. Flores,Erico M. M. |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | carbon nanotubes metal impurities solid sampling electrothermal atomic absorption spectrometry |
| datacite.titles.title.fl_str_mv | Determination of metal impurities in carbon nanotubes by direct solid sampling electrothermal atomic absorption spectrometry |
| dc.creator.none.fl_str_mv | Mello,Paola A. Rodrigues,Luiz Frederico Nunes,Matheus A. G. Mattos,Julio Cezar P. Müller,Edson I. Dressler,Valderi L. Flores,Erico M. M. |
| dc.format.none.fl_str_mv | text/html |
| dc.identifier.none.fl_str_mv | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532011000600006 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Sociedade Brasileira de Química |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.source.none.fl_str_mv | Journal of the Brazilian Chemical Society v.22 n.6 2011 reponame:Journal of the Brazilian Chemical Society (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
| dc.subject.none.fl_str_mv | carbon nanotubes metal impurities solid sampling electrothermal atomic absorption spectrometry |
| dc.title.fl_str_mv | Determination of metal impurities in carbon nanotubes by direct solid sampling electrothermal atomic absorption spectrometry |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | Metal impurities (Al, Cd, Co, Cr, Cu, Mg, Mn and Pb) were determined in carbon nanotubes (CNTs) by direct solid sampling electrothermal atomic absorption spectrometry (DSS-ET AAS, deuterium lamp background corrector). Parameters as pyrolysis and atomization temperatures, use of Pd as chemical modifier, feasibility of calibration using aqueous standard solutions and maximum sample mass were investigated. Results obtained by the proposed method were compared with those obtained by neutron activation analysis (NAA) and also by inductively coupled plasma mass spectrometry (ICP-MS) and inductively coupled plasma optical emission spectrometry (ICP OES) after high-pressure microwave assisted wet digestion and microwave-induced combustion methods. No significant differences were observed between the results obtained by DSS-ET AAS, ICP-MS and ICP OES after both digestion methods and also by NAA. Calibration was performed using aqueous standards. Background signals were always lower than 0.02 (peak height) and no chemical modifier was used. The proposed method allowed the determination of all elements in CNTs with lower limits of detection in comparison with other techniques. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| id | oasisbr_64605238a31c20cf23038635898fbfc0 |
| identifier.url.fl_str_mv | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532011000600006 |
| inst_facet_str | urn:organizationAcronym:oasisbr{{{_:::_}}}IBICT |
| instacron_str | OASISBR |
| institution | IBICT |
| instname_str | IBICT |
| language | eng |
| network_acronym_str | oasisbr |
| network_name_str | Oasisbr |
| oai_identifier_str | oai:scielo:S0103-50532011000600006 |
| organization_str_mv | urn:organizationAcronym:oasisbr |
| person_str_mv | Mello,Paola A. Rodrigues,Luiz Frederico Nunes,Matheus A. G. Mattos,Julio Cezar P. Müller,Edson I. Dressler,Valderi L. Flores,Erico M. M. |
| publishDate | 2011 |
| publisher.none.fl_str_mv | Sociedade Brasileira de Química |
| repo_facet_str | urn:repositoryAcronym:oasisbr{{{_:::_}}}Oasisbr |
| reponame_str | Oasisbr |
| repository_id_str | urn:repositoryAcronym:oasisbr |
| service_str_mv | urn:repositoryAcronym:oasisbr |
| spelling | Determination of metal impurities in carbon nanotubes by direct solid sampling electrothermal atomic absorption spectrometryMello,Paola A.Rodrigues,Luiz FredericoNunes,Matheus A. G.Mattos,Julio Cezar P.Müller,Edson I.Dressler,Valderi L.Flores,Erico M. M.carbon nanotubesmetal impuritiessolid samplingelectrothermal atomic absorption spectrometryopen accesshttp://purl.org/coar/access_right/c_abf2http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532011000600006URLhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532011000600006URLHasVersion2011-06-01Metal impurities (Al, Cd, Co, Cr, Cu, Mg, Mn and Pb) were determined in carbon nanotubes (CNTs) by direct solid sampling electrothermal atomic absorption spectrometry (DSS-ET AAS, deuterium lamp background corrector). Parameters as pyrolysis and atomization temperatures, use of Pd as chemical modifier, feasibility of calibration using aqueous standard solutions and maximum sample mass were investigated. Results obtained by the proposed method were compared with those obtained by neutron activation analysis (NAA) and also by inductively coupled plasma mass spectrometry (ICP-MS) and inductively coupled plasma optical emission spectrometry (ICP OES) after high-pressure microwave assisted wet digestion and microwave-induced combustion methods. No significant differences were observed between the results obtained by DSS-ET AAS, ICP-MS and ICP OES after both digestion methods and also by NAA. Calibration was performed using aqueous standards. Background signals were always lower than 0.02 (peak height) and no chemical modifier was used. The proposed method allowed the determination of all elements in CNTs with lower limits of detection in comparison with other techniques.engtext/htmlSociedade Brasileira de QuímicaJournal of the Brazilian Chemical Society v.22 n.6 2011reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQjournal articlehttp://purl.org/coar/resource_type/c_6501literatureVoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85 |
| spellingShingle | Determination of metal impurities in carbon nanotubes by direct solid sampling electrothermal atomic absorption spectrometry Mello,Paola A. carbon nanotubes metal impurities solid sampling electrothermal atomic absorption spectrometry |
| status | SINGLETON |
| status_str | VoR |
| subject.fl_str_mv | carbon nanotubes metal impurities solid sampling electrothermal atomic absorption spectrometry |
| title | Determination of metal impurities in carbon nanotubes by direct solid sampling electrothermal atomic absorption spectrometry |
| title_full | Determination of metal impurities in carbon nanotubes by direct solid sampling electrothermal atomic absorption spectrometry |
| title_fullStr | Determination of metal impurities in carbon nanotubes by direct solid sampling electrothermal atomic absorption spectrometry |
| title_full_unstemmed | Determination of metal impurities in carbon nanotubes by direct solid sampling electrothermal atomic absorption spectrometry |
| title_short | Determination of metal impurities in carbon nanotubes by direct solid sampling electrothermal atomic absorption spectrometry |
| title_sort | Determination of metal impurities in carbon nanotubes by direct solid sampling electrothermal atomic absorption spectrometry |
| topic | carbon nanotubes metal impurities solid sampling electrothermal atomic absorption spectrometry |
| topic_facet | carbon nanotubes metal impurities solid sampling electrothermal atomic absorption spectrometry |
| url | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532011000600006 |
| visible | 1 |
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