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http://acervodigital.unesp.br/handle/11449/36557
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DC Field | Value | Language |
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dc.contributor.author | Saczk, A. A. | - |
dc.contributor.author | Okumura, L. L. | - |
dc.contributor.author | de Oliveira, M. F. | - |
dc.contributor.author | Zanoni, Maria Valnice Boldrin | - |
dc.contributor.author | Stradiotto, Nelson Ramos | - |
dc.date.accessioned | 2014-05-20T15:26:23Z | - |
dc.date.accessioned | 2016-10-25T18:01:00Z | - |
dc.date.available | 2014-05-20T15:26:23Z | - |
dc.date.available | 2016-10-25T18:01:00Z | - |
dc.date.issued | 2005-04-01 | - |
dc.identifier | http://dx.doi.org/10.1007/s00216-005-3153-0 | - |
dc.identifier.citation | Analytical and Bioanalytical Chemistry. Heidelberg: Springer Heidelberg, v. 381, n. 8, p. 1619-1624, 2005. | - |
dc.identifier.issn | 1618-2642 | - |
dc.identifier.uri | http://hdl.handle.net/11449/36557 | - |
dc.identifier.uri | http://acervodigital.unesp.br/handle/11449/36557 | - |
dc.description.abstract | A high-performance liquid chromatography (HPLC) method for the determination of acetaldehyde in fuel ethanol was developed. Acetaldehyde was derivatized with 0.900 mL 2,4-dinitrophenylhydrazine (DNPHi) reagent and 50 mu L phosphoric acid 1 mol L-1 at a controlled room temperature of 15 degrees C for 20 min. The separation of acetaldehyde- DNPH (ADNPH) was carried out on a Shimadzu Shim-pack C-18 column, using methanol/LiCl(aq) 1.0 mM (80/20, v/v) as a mobile phase under isocratic elution and UV-Vis detection at 365 nm. The standard curve of ADNPH was linear in the range 3-300 amg L-1 per injection (20 mu L) and the limit of detection (LOD) for acetaldehyde was 2.03 mu g L-1, with a correlation coefficient greater than 0.999 and a precision (relative standard deviation, RSD) of 5.6% (n=5). Recovery studies were performed by fortifying fuel samples with acetaldehyde at various concentrations and the results were in the range 98.7-102%, with a coefficient of variation (CV) from 0.2% to 7.2%. Several fuel samples collected from various gas stations were analyzed and the method was successfully applied to the analysis of acetaldehyde in fuel ethanol samples. | en |
dc.format.extent | 1619-1624 | - |
dc.language.iso | eng | - |
dc.publisher | Springer | - |
dc.source | Web of Science | - |
dc.subject | high-performance liquid chromatography | pt |
dc.subject | UV-Vis detection | pt |
dc.subject | isocratic elution | pt |
dc.subject | acetaldehyde | pt |
dc.subject | 2,4-dinitrophenylhydrazine | pt |
dc.subject | fuel ethanol | pt |
dc.title | Rapid and sensitive method for the determination of acetaldehyde in fuel ethanol by high-performance liquid chromatography with UV-Vis detection | en |
dc.type | outro | - |
dc.contributor.institution | Universidade Estadual Paulista (UNESP) | - |
dc.description.affiliation | UNESP, Inst Quim, BR-14800900 Araraquara, SP, Brazil | - |
dc.description.affiliationUnesp | UNESP, Inst Quim, BR-14800900 Araraquara, SP, Brazil | - |
dc.identifier.doi | 10.1007/s00216-005-3153-0 | - |
dc.identifier.wos | WOS:000228728200020 | - |
dc.rights.accessRights | Acesso restrito | - |
dc.relation.ispartof | Analytical and Bioanalytical Chemistry | - |
dc.identifier.orcid | 0000-0002-2296-1393 | - |
Appears in Collections: | Artigos, TCCs, Teses e Dissertações da Unesp |
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