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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/36557
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dc.contributor.authorSaczk, A. A.-
dc.contributor.authorOkumura, L. L.-
dc.contributor.authorde Oliveira, M. F.-
dc.contributor.authorZanoni, Maria Valnice Boldrin-
dc.contributor.authorStradiotto, Nelson Ramos-
dc.date.accessioned2014-05-20T15:26:23Z-
dc.date.accessioned2016-10-25T18:01:00Z-
dc.date.available2014-05-20T15:26:23Z-
dc.date.available2016-10-25T18:01:00Z-
dc.date.issued2005-04-01-
dc.identifierhttp://dx.doi.org/10.1007/s00216-005-3153-0-
dc.identifier.citationAnalytical and Bioanalytical Chemistry. Heidelberg: Springer Heidelberg, v. 381, n. 8, p. 1619-1624, 2005.-
dc.identifier.issn1618-2642-
dc.identifier.urihttp://hdl.handle.net/11449/36557-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/36557-
dc.description.abstractA 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.extent1619-1624-
dc.language.isoeng-
dc.publisherSpringer-
dc.sourceWeb of Science-
dc.subjecthigh-performance liquid chromatographypt
dc.subjectUV-Vis detectionpt
dc.subjectisocratic elutionpt
dc.subjectacetaldehydept
dc.subject2,4-dinitrophenylhydrazinept
dc.subjectfuel ethanolpt
dc.titleRapid and sensitive method for the determination of acetaldehyde in fuel ethanol by high-performance liquid chromatography with UV-Vis detectionen
dc.typeoutro-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationUNESP, Inst Quim, BR-14800900 Araraquara, SP, Brazil-
dc.description.affiliationUnespUNESP, Inst Quim, BR-14800900 Araraquara, SP, Brazil-
dc.identifier.doi10.1007/s00216-005-3153-0-
dc.identifier.wosWOS:000228728200020-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofAnalytical and Bioanalytical Chemistry-
dc.identifier.orcid0000-0002-2296-1393-
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