Abstract
Currently for compound detection the most difficult are sampling steps and sample preparation for analysis of highly volatile compounds (VOC) and their derivatives, such as ethylene, propylene, acetaldehyde and acetone. For this purpose single- and multibed sorbent tubes were prepared, filled with the following materials: Tenax TA, Carbotrap, Carbopack C, Carbosieve SIII, Carboxen 569. The linear relationship between the mass of analysed compounds and decreased recovery from carbon molecular sieve was determined. The highest desorption recovery (∼100%) for C2–C5 hydrocarbons from multibed sorption traps contained Tenax TA/Carbotrap/Carbosieve SIII. Sorbent traps were also used to determine selected VOC (acetone, acetaldehyde, 2-butanone, benzene, toluene, m,p-xylene) in gas phase of tobacco smoke from single 1R5F reference cigarette. Quantitative analysis of selected compounds was done by standard addition method with r 2 = 0.9931 for 2-butanone and 0.9773 for acetaldehyde. The best combination of sorbent materials included Tenax TA/Carbotrap/Carboxen 569 allowing for VOC determination at low level: 0.31 µg L−1 for m,p-xylene and 40.24 µg L−1 for acetaldehyde. This composition of multibed sorption trap also gave the highest recovery for acetone and 2-butanone as well as the lowest RSD (9.81%, and 9.14%, respectively).
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