Express analysis of hard alcohol drinks using the “electronic nose” piezosensors arra

Abstract

A new way of express analysis of alcohol-containing liquids with the possibility of identification of fusel oil set components using chemical gas sensors has been developed. The sorption of the volatile organic components of the basic alcohol-containing liquids’ volatile fraction has been studied. The optimum set of piezosensors was chosen, and most importantly, it was adapted to the basic test substances (propanone, 1-propanol, 2-propanol, 1-butanol, 2-butanol, ethanol, butanone, acetaldehyde, ethyl acetate, butyl acetate, water). The possibility of applying an express method of piezoelectric quartz crystal micro-weighing for the identification of gross falsification of alcohol-containing beverages with the high ethanol content was positively evaluated. Several methodical approaches were offered to identify the individual vapor components in the mixture of fusel oils. The sample analysis of the alcohol-containing liquids was done simultaneously by the method of gas chromatography. The correlation between the area of the “visual print” signals, the optimized composition of chemical sensors and the parameters of gas chromatography was established. The newly developed method significantly reduces the time and the economic costs allowing you to quickly identify volatile organic substances in alcoholic beverages, and it is also helpful and suitable for the routine analysis. Keywords: the component of fusel oil, alcohol-containing liquids, quality, electronic nose, chemical sensors DOI: http://dx.doi.org/10.15826/analitika.2017.21.3.003 T.A. Kuchmenko, E.V. Bodrenko, E.P. Anokhina Voronezh state university of engineering technologies, pr. Revoliutsii, 19, Voronezh, 394036, Russian Federation