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Efficiency of capillary GC columns based on phosphonium ionic liquids
(Elsevier Science, 2020-07-05)
Gas chromatographic columns based on ionic liquids (ILs) are very promising since the selectivity of these columns can be tuned by both the cation and the anion chemical nature. In this paper, efficiencies of capillary ...
Analysis of isomeric tropane alkaloids from Schizanthus grahamii by very fast gas chromatography
(WILEY-V C H VERLAG GMBH, 2006-01)
This study presents a very fast GC analysis applied for the baseline separation of isomeric tropane alkaloids extracted from the stem-bark of Schizanthus grahamii (Solanaceae). The work provided a challenging application ...
Determination of 2-methylimidazole and 4-methylimidazole in caramel colors by capillary electrophoresis
(2013-03-06)
The use of chemical preservative compounds is common in the food products industry. Caramel color is the most usual additive used in beverages, desserts, and breads worldwide. During its fabrication process, 2- and ...
Determination of 2-methylimidazole and 4-methylimidazole in caramel colors by capillary electrophoresis
(2013-03-06)
The use of chemical preservative compounds is common in the food products industry. Caramel color is the most usual additive used in beverages, desserts, and breads worldwide. During its fabrication process, 2- and ...
Determination of gas–liquid partition coefficients of several organic solutes in trihexyl(tetradecyl)phosphonium bromide using capillary gas chromatography columns
(Elsevier Science, 2017-06)
In this paper, we report gas-liquid partition constants for thirty-five volatile organic solutes in the room temperature ionic liquid trihexyl(tetradecyl)phosphonium bromide measured by gas-liquid chromatography using ...
Simplex optimization of a programmed temperature capillary gas chromatographic separation
(1991-01-01)
The modified simplex algorithm proposed by Nelder and Mead has been used to optimize the separation by temperature programmed capillary GC, of volatile compounds present in alcoholic beverages. An adequate objective function, ...
Influence on the quality of essential lemon (Citrus aurantifolia) oil by distillation process
(Brazilian Soc Chemical EngSao PauloBrasil, 2006)
Total Trans Fatty Acid Analysis in Spreadable Cheese by Capillary Zone Electrophoresis
(AMER CHEMICAL SOC, 2010)
An alternative method for determination of total trans fatty acids expressed as elaidic acid by capillary zone electrophoresis (CZE) under indirect UV detection at 224 nm within an analysis time of 7.5 min was developed. ...
Cromatografia gasosa bidimensional abrangente (GC × GC)Comprehensive two-dimensional gas chromatography (GC × GC)
(Sociedade Brasileira de Química, 2009)