Repozytorium publikacji - Politechnika Gdańska

The paper compares two methods of analysis of odour of volatile organic compounds: classical sensory analysis and electronic nose technique. Eight volunteers participated in the classical sensory analysis investigations, which lasted two weeks. An instrumental odour analysis involved a prototype of 6-sensor electronic nose designed by the authors. The research performed with this device provided higher reproducibility and reliability of the results as compared to the ones obtained via the sensory analysis. Three compounds of specific odour and differing in chemical structure were utilized in the studies: 1-propanol, benzaldehyde and 2,3-butanedion. The aqueous solutions of these compounds and their mixtures were prepared at three concentration levels: 50 ppb, 1 ppm, 50 ppm v/v. The electronic nose technique, unlike the classical sensory analysis, made it possible to differentiate between particular solutions below the level of odour perceptibility and also allowed differentiation between the solutions of similar odour intensity reported by the volunteers.

Autorzy

• dr hab. inż. Jacek Gębicki link otwiera się w nowej karcie ,
• dr inż. Tomasz Dymerski link otwiera się w nowej karcie ,
• Szymon Rutkowski link otwiera się w nowej karcie