2003
DOI: 10.1590/s0100-40422003000600007
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Análise de ácidos graxos por eletroforese capilar utilizando detecção condutométrica sem contato

Abstract: Recebido em 7/10/02; aceito em 27/3/03 ANALYSIS OF FATTY ACIDS BY CAPILLARY ELECTROPHORESIS WITH CONTACTLESS CONDUCTIVITY DETECTION. This article describes a novel approach to the separation of fatty acids ranging from 8 to 20 carbons using capillary electrophoresis with contactless conductivity detection. Complete separation of nine linear chain fatty acids (from C8:0 to C20:0) was achieved in 15 min under normal polarity operation. Limits of detection ranged from 35 to 319 µmol L -1 for C20:0 to C8:0, respec… Show more

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Cited by 30 publications
(16 citation statements)
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References 23 publications
(26 reference statements)
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“…ou derivativos que apresentem alta absortividade, como fenacil-ésteres, naftacil-ésteres e 2-nitrofenilidrazidas), uma vez que a detecção indireta, seja no caso de radiação Ultravioleta (UV) ou fluorescência, pode ser empregada 44 .…”
Section: Métodos De Controle De Qualidade Do óLeo/gordura De Frituraunclassified
See 1 more Smart Citation
“…ou derivativos que apresentem alta absortividade, como fenacil-ésteres, naftacil-ésteres e 2-nitrofenilidrazidas), uma vez que a detecção indireta, seja no caso de radiação Ultravioleta (UV) ou fluorescência, pode ser empregada 44 .…”
Section: Métodos De Controle De Qualidade Do óLeo/gordura De Frituraunclassified
“…Devido ao seu bom desempenho na aná-lise iônica, a detecção condutométrica em EC tem apresentado larga aceitação, principalmente após a comercialização de equipamentos munidos desse tipo de detector 44,45 .…”
Section: Métodos De Controle De Qualidade Do óLeo/gordura De Frituraunclassified
“…Our group has worked on the development of CE-C 4 D for analysis of simple cations and anions in matrices such as rainwater [16], serum and hemodialysis fluid [17], ethanol fuel [18], and for monitoring of the extent of reaction between poly(epichlorohydrin) and N-methyl-dglucamine [19]. Species that are not commonly analyzed by CE-C 4 D were also studied: fatty acids [20], mono-and disaccharides [21], and aliphatic alcohols [22]. This last study was the first demonstration of C 4 D for micellar electrokinetic chromatography (MEKC).…”
Section: Introductionmentioning
confidence: 99%
“…Due to the importance of these fatty acids in human diet and the possibility of economic fraud, this work has as the main objective to apply CE as an auxiliary analytical tool able to distinguish between enriched and natural eggs using the ω fatty acid profile as a chemical marker. [13][14][15][16][17][18][19][20][21][22][23] Such fraud can be serious, since no visual difference is found between enriched and natural chicken eggs and, according to a price survey in the local market, a dozen enriched eggs can cost up to 2.0 times the price paid for a dozen natural eggs.…”
Section: Introductionmentioning
confidence: 99%