Phase transfer processes
With the single droplet experiment it is possible to study phase transfer processes of chemical compounds from the gas phase into the aqueous phase. Furthermore, the reactivity of trace gases and radicals on aqueous surfaces can be determined. In order to do these investigations the uptake of organic compounds in a single suspended aqueous droplet in a flow tube will be observed using UV-Vis or FT-IR spectroscopy (Figure 1 and 2). This experiment allows the measurement of fundamental phase transfer parameters, e.g. mass accommodation coefficient α and rate constants k of occurring surface reactions.
Figure 2: The section for drop generation and analysis in the single drop experiment
The Knudsen cell
The Schema of a Knudsen
Fig. 2: Experimental Setup Knudsen cell