Focused Microwave-Induced Combustion: A New Technique for Sample Digestion
| 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/5907 |
Resumo: | p. 2155–2160 |
| id |
UFBA-2_6abfca3ef1d25431f6c4f25aff0ce80f |
|---|---|
| oai_identifier_str |
oai:repositorio.ufba.br:ri/5907 |
| network_acronym_str |
UFBA-2 |
| network_name_str |
Repositório Institucional da UFBA |
| repository_id_str |
1932 |
| spelling |
Mesko, Márcia F.Pereira, Juliana S. F.Moraes, Diogo P.Barin, Juliano S.Mello, Paola A.Paniz, José Neri GottfriedNóbrega, Joaquim de AraújoKorn, Maria das Graças AndradeFlores, Erico M. M.Mesko, Márcia F.Pereira, Juliana S. F.Moraes, Diogo P.Barin, Juliano S.Mello, Paola A.Paniz, José Neri GottfriedNóbrega, Joaquim de AraújoKorn, Maria das Graças AndradeFlores, Erico M. M.2012-05-17T19:13:21Z2012-05-17T19:13:21Z2010-03-010003-2700http://www.repositorio.ufba.br/ri/handle/ri/5907v. 82, n. 5p. 2155–2160A procedure for sample digestion based on focused microwave-induced combustion (FMIC) is proposed. This system was developed using a commercial focused microwave oven with a lab-made quartz sample holder and a modified glass vessel. Oxygen flow was used to start and support the combustion. A botanical sample was used to evaluate the operational conditions for further Al, Ba, Ca,Fe, Mg, Mn, Sr, and Zn determination by inductively coupled plasma optical emission spectrometry. Pelletized samples were positioned on the quartz holder, and 50 μL of 6 mol L-1 NH4NO3 solution was added as igniter. Combustion was completed in less than 2 min, and the temperature was higher than 950 °C. The use of a reflux step, the position of sample holder inside the vessel, sample mass, ignition and combustion time, oxygen flow rate, and condenser type were evaluated. Results were compared with those obtained by focused microwave-assisted wet digestion and by high pressure microwave-assisted wet digestion. Agreement of 95-103% was obtained for certified reference materials digested by FMIC (reflux step with 10 mL of 4 mol L-1 HNO3). With the proposed procedure, a complete sample decomposition (residual carbon content lower than 0.5%) was achieved with low consumption of reagents as only 10 mL of diluted nitric acid was necessary. Low relative standard deviation (lower than 3.8%) was observed and high amount of sample (up to 1500 mg) could be digested that allowed lower limits of detection.Submitted by Bruna Lessa (lessbruna@gmail.com) on 2012-05-17T19:13:21Z No. of bitstreams: 1 (22)ac902976j.pdf: 127077 bytes, checksum: 2c2fd03e5c0076bdbd4a056a4eb95ccf (MD5)Made available in DSpace on 2012-05-17T19:13:21Z (GMT). No. of bitstreams: 1 (22)ac902976j.pdf: 127077 bytes, checksum: 2c2fd03e5c0076bdbd4a056a4eb95ccf (MD5) Previous issue date: 2010-03-01ACS Publications10.1021/ac902976jreponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAFocused Microwave-Induced Combustion: A New Technique for Sample DigestionAnalytical Chemistryinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleenginfo:eu-repo/semantics/openAccessORIGINAL(22)ac902976j.pdf(22)ac902976j.pdfapplication/pdf127077https://repositorio.ufba.br/bitstream/ri/5907/1/%2822%29ac902976j.pdf2c2fd03e5c0076bdbd4a056a4eb95ccfMD51LICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/5907/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52TEXT(22)ac902976j.pdf.txt(22)ac902976j.pdf.txtExtracted texttext/plain32789https://repositorio.ufba.br/bitstream/ri/5907/3/%2822%29ac902976j.pdf.txt7d01763a489342325f3120ca508e60f8MD53ri/59072022-07-05 14:03:44.415oai:repositorio.ufba.br:ri/5907VGVybW8gZGUgTGljZW7vv71hLCBu77+9byBleGNsdXNpdm8sIHBhcmEgbyBkZXDvv71zaXRvIG5vIHJlcG9zaXTvv71yaW8gSW5zdGl0dWNpb25hbCBkYSBVRkJBCgogICAgUGVsbyBwcm9jZXNzbyBkZSBzdWJtaXNz77+9byBkZSBkb2N1bWVudG9zLCBvIGF1dG9yIG91IHNldQpyZXByZXNlbnRhbnRlIGxlZ2FsLCBhbyBhY2VpdGFyIGVzc2UgdGVybW8gZGUgbGljZW7vv71hLCBjb25jZWRlIGFvClJlcG9zaXTvv71yaW8gSW5zdGl0dWNpb25hbCBkYSBVbml2ZXJzaWRhZGUgRmVkZXJhbCBkYSBCYWhpYSBvIGRpcmVpdG8KZGUgbWFudGVyIHVtYSBj77+9cGlhIGVtIHNldSByZXBvc2l077+9cmlvIGNvbSBhIGZpbmFsaWRhZGUsIHByaW1laXJhLCAKZGUgcHJlc2VydmHvv73vv71vLiBFc3NlcyB0ZXJtb3MsIG7vv71vIGV4Y2x1c2l2b3MsIG1hbnTvv71tIG9zIGRpcmVpdG9zIGRlIAphdXRvci9jb3B5cmlnaHQsIG1hcyBlbnRlbmRlIG8gZG9jdW1lbnRvIGNvbW8gcGFydGUgZG8gYWNlcnZvIGludGVsZWN0dWFsIGRlc3NhIFVuaXZlcnNpZGFkZS4gCgogICAgUGFyYSBvcyBkb2N1bWVudG9zIHB1YmxpY2Fkb3MgY29tIHJlcGFzc2UgZGUgZGlyZWl0b3MgZGUgZGlzdHJpYnVp77+977+9bywgZXNzZSB0ZXJtbyBkZSBsaWNlbu+/vWEgZW50ZW5kZSBxdWU6IAoKICAgIE1hbnRlbmRvIG9zICBkaXJlaXRvcyBhdXRvcmFpcywgcmVwYXNzYWRvcyBhIHRlcmNlaXJvcywgZW0gY2FzbyAKZGUgcHVibGljYe+/ve+/vWVzLCBvIHJlcG9zaXTvv71yaW8gcG9kZSByZXN0cmluZ2lyIG8gYWNlc3NvIGFvIHRleHRvIAppbnRlZ3JhbCwgbWFzIGxpYmVyYSBhcyBpbmZvcm1h77+977+9ZXMgc29icmUgbyBkb2N1bWVudG8gKE1ldGFkYWRvcyBkZXNjcml0aXZvcykuCgogRGVzdGEgZm9ybWEsIGF0ZW5kZW5kbyBhb3MgYW5zZWlvcyBkZXNzYSB1bml2ZXJzaWRhZGUgCmVtIG1hbnRlciBzdWEgcHJvZHXvv73vv71vIGNpZW5077+9ZmljYSBjb20gYXMgcmVzdHJp77+977+9ZXMgaW1wb3N0YXMgcGVsb3MgCmVkaXRvcmVzIGRlIHBlcmnvv71kaWNvcy4gCgogICAgUGFyYSBhcyBwdWJsaWNh77+977+9ZXMgZW0gaW5pY2lhdGl2YXMgcXVlIHNlZ3VlbSBhIHBvbO+/vXRpY2EgZGUgCkFjZXNzbyBBYmVydG8sIG9zIGRlcO+/vXNpdG9zIGNvbXB1bHPvv71yaW9zIG5lc3NlIHJlcG9zaXTvv71yaW8gbWFudO+/vW0gCm9zIGRpcmVpdG9zIGF1dG9yYWlzLCBtYXMgbWFudO+/vW0gbyBhY2Vzc28gaXJyZXN0cml0byBhbyBtZXRhZGFkb3MgCmUgdGV4dG8gY29tcGxldG8uIEFzc2ltLCBhIGFjZWl0Ye+/ve+/vW8gZGVzc2UgdGVybW8gbu+/vW8gbmVjZXNzaXRhIGRlIApjb25zZW50aW1lbnRvIHBvciBwYXJ0ZSBkZSBhdXRvcmVzL2RldGVudG9yZXMgZG9zIGRpcmVpdG9zLCBwb3IgCmVzdGFyZW0gZW0gaW5pY2lhdGl2YXMgZGUgYWNlc3NvIGFiZXJ0by4KCiAgICBFbSBhbWJvcyBvIGNhc28sIGVzc2UgdGVybW8gZGUgbGljZW7vv71hLCBwb2RlIHNlciBhY2VpdG8gcGVsbyAKYXV0b3IsIGRldGVudG9yZXMgZGUgZGlyZWl0b3MgZS9vdSB0ZXJjZWlyb3MgYW1wYXJhZG9zIHBlbGEgCnVuaXZlcnNpZGFkZS4gRGV2aWRvIGFvcyBkaWZlcmVudGVzIHByb2Nlc3NvcyBwZWxvIHF1YWwgYSBzdWJtaXNz77+9byAKcG9kZSBvY29ycmVyLCBvIHJlcG9zaXTvv71yaW8gcGVybWl0ZSBhIGFjZWl0Ye+/ve+/vW8gZGEgbGljZW7vv71hIHBvciAKdGVyY2Vpcm9zLCBzb21lbnRlIG5vcyBjYXNvcyBkZSBkb2N1bWVudG9zIHByb2R1emlkb3MgcG9yIGludGVncmFudGVzIApkYSBVRkJBIGUgc3VibWV0aWRvcyBwb3IgcGVzc29hcyBhbXBhcmFkYXMgcG9yIGVzdGEgaW5zdGl0dWnvv73vv71vLgo=Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:44Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false |
| dc.title.pt_BR.fl_str_mv |
Focused Microwave-Induced Combustion: A New Technique for Sample Digestion |
| dc.title.alternative.pt_BR.fl_str_mv |
Analytical Chemistry |
| title |
Focused Microwave-Induced Combustion: A New Technique for Sample Digestion |
| spellingShingle |
Focused Microwave-Induced Combustion: A New Technique for Sample Digestion Mesko, Márcia F. |
| title_short |
Focused Microwave-Induced Combustion: A New Technique for Sample Digestion |
| title_full |
Focused Microwave-Induced Combustion: A New Technique for Sample Digestion |
| title_fullStr |
Focused Microwave-Induced Combustion: A New Technique for Sample Digestion |
| title_full_unstemmed |
Focused Microwave-Induced Combustion: A New Technique for Sample Digestion |
| title_sort |
Focused Microwave-Induced Combustion: A New Technique for Sample Digestion |
| author |
Mesko, Márcia F. |
| author_facet |
Mesko, Márcia F. Pereira, Juliana S. F. Moraes, Diogo P. Barin, Juliano S. Mello, Paola A. Paniz, José Neri Gottfried Nóbrega, Joaquim de Araújo Korn, Maria das Graças Andrade Flores, Erico M. M. |
| author_role |
author |
| author2 |
Pereira, Juliana S. F. Moraes, Diogo P. Barin, Juliano S. Mello, Paola A. Paniz, José Neri Gottfried Nóbrega, Joaquim de Araújo Korn, Maria das Graças Andrade Flores, Erico M. M. |
| author2_role |
author author author author author author author author |
| dc.contributor.author.fl_str_mv |
Mesko, Márcia F. Pereira, Juliana S. F. Moraes, Diogo P. Barin, Juliano S. Mello, Paola A. Paniz, José Neri Gottfried Nóbrega, Joaquim de Araújo Korn, Maria das Graças Andrade Flores, Erico M. M. Mesko, Márcia F. Pereira, Juliana S. F. Moraes, Diogo P. Barin, Juliano S. Mello, Paola A. Paniz, José Neri Gottfried Nóbrega, Joaquim de Araújo Korn, Maria das Graças Andrade Flores, Erico M. M. |
| description |
p. 2155–2160 |
| publishDate |
2010 |
| dc.date.issued.fl_str_mv |
2010-03-01 |
| dc.date.accessioned.fl_str_mv |
2012-05-17T19:13:21Z |
| dc.date.available.fl_str_mv |
2012-05-17T19:13:21Z |
| 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/5907 |
| dc.identifier.issn.none.fl_str_mv |
0003-2700 |
| dc.identifier.number.pt_BR.fl_str_mv |
v. 82, n. 5 |
| identifier_str_mv |
0003-2700 v. 82, n. 5 |
| url |
http://www.repositorio.ufba.br/ri/handle/ri/5907 |
| 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.publisher.none.fl_str_mv |
ACS Publications |
| publisher.none.fl_str_mv |
ACS Publications |
| dc.source.pt_BR.fl_str_mv |
10.1021/ac902976j |
| 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/5907/1/%2822%29ac902976j.pdf https://repositorio.ufba.br/bitstream/ri/5907/2/license.txt https://repositorio.ufba.br/bitstream/ri/5907/3/%2822%29ac902976j.pdf.txt |
| bitstream.checksum.fl_str_mv |
2c2fd03e5c0076bdbd4a056a4eb95ccf 1b89a9a0548218172d7c829f87a0eab9 7d01763a489342325f3120ca508e60f8 |
| 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_ |
1808459399230914560 |