Evaluation of digestion procedures for simultaneous determination of Ca, P, Mg, K and Na in biodiesel by inductively coupled plasma optical emission spectrometry
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2010 |
| Outros Autores: | , , , , , |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Repositório Institucional da UFBA |
| Texto Completo: | http://www.repositorio.ufba.br/ri/handle/ri/4949 |
Resumo: | p. 2278-2284. |
| id |
UFBA-2_e362589890c393c4a6d1486284aca46c |
|---|---|
| oai_identifier_str |
oai:repositorio.ufba.br:ri/4949 |
| network_acronym_str |
UFBA-2 |
| network_name_str |
Repositório Institucional da UFBA |
| repository_id_str |
1932 |
| spelling |
Korn, Maria das Graças AndradeSantos, Daniele Cristina M. B.Guida, Mauro Agildo B.Barbosa, Isa dos SantosPassos, Marieta L. C.Saraiva, Maria Lúcia M. F. S.Lima, José Luis Fontes da CostaKorn, Maria das Graças AndradeSantos, Daniele Cristina M. B.Guida, Mauro Agildo B.Barbosa, Isa dos SantosPassos, Marieta L. C.Saraiva, Maria Lúcia M. F. S.Lima, José Luis Fontes da Costa2011-12-21T11:14:30Z2011-12-21T11:14:30Z2010-120103-5053http://www.repositorio.ufba.br/ri/handle/ri/4949v. 21, n. 12.p. 2278-2284.Neste trabalho foi avaliada a eficiência de dois procedimentos para digestão ácida de amostras de biodiesel visando à determinação de Ca, P, Mg, K e Na por espectrometria de emissão óptica com plasma acoplado indutivamente com configuração axial (ICP OES). Nas digestões em sistema aberto, foi utilizada a mistura contendo ácidos nítrico, sulfúrico e peróxido de hidrogênio e aquecimento condutivo; enquanto que no procedimento empregando forno de microondas com cavidade foi utilizada a mistura contendo ácido nítrico e peróxido de hidrogênio. Os procedimentos foram avaliados considerando-se limites de quantificação, precisão, acidez final dos digeridos e teor de carbono residual. Os teores de carbono residual nos digeridos foram 0,358 ± 0,012% para o sistema aberto com aquecimento convencional e 0,614 ± 0,023% para o sistema fechado com aquecimento assistido por radiação microondas, o que demonstra a alta eficiência dos procedimentos propostos. O sistema de digestão em forno de microondas com cavidade resultou em maior rapidez, segurança e resultados analíticos com percentuais de recuperação de 89,0-103,0% e desvios menores que 5%. Os limites de detecção obtidos, < 0.40 µg g-1, são adequados para a determinação dos analitos, conforme os limites estabelecidos na legislação brasileira. Três amostras de biodiesel produzidas de diferentes fontes foram analisadas. Em comparação com outros procedimentos propostos na literatura, o procedimento desenvolvido usando forno de microondas com cavidade apresenta vantagens, tais como não necessitar de soluções orgânicas para calibração e não usar solventes orgânicos tóxicos.Submitted by JURANDI DE SOUZA SILVA (jssufba@hotmail.com) on 2011-12-21T11:14:30Z No. of bitstreams: 1 a15v2112.pdf: 168394 bytes, checksum: 7ee3caf6c76c5e67d26072675b8b52c5 (MD5)Made available in DSpace on 2011-12-21T11:14:30Z (GMT). No. of bitstreams: 1 a15v2112.pdf: 168394 bytes, checksum: 7ee3caf6c76c5e67d26072675b8b52c5 (MD5) Previous issue date: 2010-12São Paulohttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532010001200015&lng=en&nrm=isoreponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBABiodieselSample preparationMetalsPhosphorusICP OESEvaluation of digestion procedures for simultaneous determination of Ca, P, Mg, K and Na in biodiesel by inductively coupled plasma optical emission spectrometryJournal of the Brazilian Chemical Societyinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleenginfo:eu-repo/semantics/openAccessORIGINALa15v2112.pdfa15v2112.pdfapplication/pdf168394https://repositorio.ufba.br/bitstream/ri/4949/1/a15v2112.pdf7ee3caf6c76c5e67d26072675b8b52c5MD51LICENSElicense.txtlicense.txttext/plain1809https://repositorio.ufba.br/bitstream/ri/4949/2/license.txt8bb3e3eb871f5854a9ec419f68651b60MD52TEXTa15v2112.pdf.txta15v2112.pdf.txtExtracted texttext/plain30077https://repositorio.ufba.br/bitstream/ri/4949/3/a15v2112.pdf.txt8afe73f37f704fd0760ff84d8a542ea0MD53ri/49492022-07-05 14:03:42.465oai:repositorio.ufba.br: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ório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:42Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false |
| dc.title.pt_BR.fl_str_mv |
Evaluation of digestion procedures for simultaneous determination of Ca, P, Mg, K and Na in biodiesel by inductively coupled plasma optical emission spectrometry |
| dc.title.alternative.pt_BR.fl_str_mv |
Journal of the Brazilian Chemical Society |
| title |
Evaluation of digestion procedures for simultaneous determination of Ca, P, Mg, K and Na in biodiesel by inductively coupled plasma optical emission spectrometry |
| spellingShingle |
Evaluation of digestion procedures for simultaneous determination of Ca, P, Mg, K and Na in biodiesel by inductively coupled plasma optical emission spectrometry Korn, Maria das Graças Andrade Biodiesel Sample preparation Metals Phosphorus ICP OES |
| title_short |
Evaluation of digestion procedures for simultaneous determination of Ca, P, Mg, K and Na in biodiesel by inductively coupled plasma optical emission spectrometry |
| title_full |
Evaluation of digestion procedures for simultaneous determination of Ca, P, Mg, K and Na in biodiesel by inductively coupled plasma optical emission spectrometry |
| title_fullStr |
Evaluation of digestion procedures for simultaneous determination of Ca, P, Mg, K and Na in biodiesel by inductively coupled plasma optical emission spectrometry |
| title_full_unstemmed |
Evaluation of digestion procedures for simultaneous determination of Ca, P, Mg, K and Na in biodiesel by inductively coupled plasma optical emission spectrometry |
| title_sort |
Evaluation of digestion procedures for simultaneous determination of Ca, P, Mg, K and Na in biodiesel by inductively coupled plasma optical emission spectrometry |
| author |
Korn, Maria das Graças Andrade |
| author_facet |
Korn, Maria das Graças Andrade Santos, Daniele Cristina M. B. Guida, Mauro Agildo B. Barbosa, Isa dos Santos Passos, Marieta L. C. Saraiva, Maria Lúcia M. F. S. Lima, José Luis Fontes da Costa |
| author_role |
author |
| author2 |
Santos, Daniele Cristina M. B. Guida, Mauro Agildo B. Barbosa, Isa dos Santos Passos, Marieta L. C. Saraiva, Maria Lúcia M. F. S. Lima, José Luis Fontes da Costa |
| author2_role |
author author author author author author |
| dc.contributor.author.fl_str_mv |
Korn, Maria das Graças Andrade Santos, Daniele Cristina M. B. Guida, Mauro Agildo B. Barbosa, Isa dos Santos Passos, Marieta L. C. Saraiva, Maria Lúcia M. F. S. Lima, José Luis Fontes da Costa Korn, Maria das Graças Andrade Santos, Daniele Cristina M. B. Guida, Mauro Agildo B. Barbosa, Isa dos Santos Passos, Marieta L. C. Saraiva, Maria Lúcia M. F. S. Lima, José Luis Fontes da Costa |
| dc.subject.por.fl_str_mv |
Biodiesel Sample preparation Metals Phosphorus ICP OES |
| topic |
Biodiesel Sample preparation Metals Phosphorus ICP OES |
| description |
p. 2278-2284. |
| publishDate |
2010 |
| dc.date.issued.fl_str_mv |
2010-12 |
| dc.date.accessioned.fl_str_mv |
2011-12-21T11:14:30Z |
| dc.date.available.fl_str_mv |
2011-12-21T11:14:30Z |
| 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/4949 |
| dc.identifier.issn.none.fl_str_mv |
0103-5053 |
| dc.identifier.number.pt_BR.fl_str_mv |
v. 21, n. 12. |
| identifier_str_mv |
0103-5053 v. 21, n. 12. |
| url |
http://www.repositorio.ufba.br/ri/handle/ri/4949 |
| 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://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532010001200015&lng=en&nrm=iso |
| 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 |
| bitstream.url.fl_str_mv |
https://repositorio.ufba.br/bitstream/ri/4949/1/a15v2112.pdf https://repositorio.ufba.br/bitstream/ri/4949/2/license.txt https://repositorio.ufba.br/bitstream/ri/4949/3/a15v2112.pdf.txt |
| bitstream.checksum.fl_str_mv |
7ee3caf6c76c5e67d26072675b8b52c5 8bb3e3eb871f5854a9ec419f68651b60 8afe73f37f704fd0760ff84d8a542ea0 |
| bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 |
| repository.name.fl_str_mv |
Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA) |
| repository.mail.fl_str_mv |
|
| _version_ |
1808459390740594688 |