Single, levitated aerosol particles
Scientific background
Why do we perform experiments on single, levitated particles in a laboratory experiment when we want to learn something about the role of aerosol particles in the atmosphere? What is the advantage of having the particles levitated rather than placing small particles on a substrate or doing experiments with bulk samples? Some answers are here
Experimental Setup
A schematic of the experimental system is shown in the figure above. To suspend a micron sized charged particle in air within a small region an electrodynamic balance is used. More details are provided here
Published results of the ALCATRAS experiment
Photochemical degradation of iron(III) citrate/citric acid aerosol quantified with the combination of three complementary experimental techniques and a kinetic process model
Dou, J., Alpert, P.A., Corral Arroyo, P., Luo, B.P., Schneider, F., Xto, J., Huthwelker, T., Borca, C.N., Henzler, K.D., Raabe, J., Watts, B., Herrmann, H., Peter, T., Ammann, M., and Krieger, U.K.
Atmos. Chem. Phys., 21, 315-338, 2021 external pagehttps://doi.org/10.5194/acp-21-315-2021 more
Current team