Université de Fribourg

An improved low-flow thermodenuder

Fierz, Martin ; Vernooij, Martine G. C. ; Burtscher, Heinz

In: Journal of Aerosol Science, 2007, vol. 38, no. 11, p. 1163-1168

Thermodenuders are used to remove the volatile fraction of an aerosol. All designs until now have a cooled adsorption section where the volatile material is trapped, but theoretical considerations suggest that the adsorption section should be heated. Therefore, we built a thermodenuder with a heated adsorption section. We tested its performance with respect to particle penetration and its ability...