McCarry J. D. The express-method of purity definition of denaturated fuel ethanol by two dimentional gas chromatography

2003 – Zurnal Hromatografichnogo Tovarystva – V. III – № 2. – P. 16-30

UDC 576.312.32.38:612.014.482

McCARRY J. D.

THE EXPRESS-METHOD OF PURITY DEFINITION OF DENATURATED FUEL ETHANOL BY TWO DIMENSIONAL GAS CHROMATOGRAPHY - article

Two dimentional gas chromatography (2D-GC) provides not only increase of the resolution, but also significant reduction time of analysis. chromatograph for 2D-GC on the basis of the elementary switch of streams «Deans» is used for the analysis on the spirit contents in denaturated fuel ethanol. Due to presence of two short columns of different selectivity, the analysis by means of 2D-GC was possible to be sped up in 10 times in comparison with typical technique D 5501 ASTM (Societies on tests and materials) USA, having excluded thus cryogenic cooling thermostat. chromatograph not only is simple in operation, but also provides high accuracy of qualitative and quantitative determination.