Karlsruhe Institute of Technology

CHARON PTR-TOF 4000 X2 & CHARON Fusion PTR-TOF 10k

Affiliation: Karlsruhe Institute of Technology (KIT), Germany
IONICON instrument: CHARON PTR-TOF 4000 X2 & CHARON Fusion PTR-TOF 10k
Contact person: Dr. Harald Saathoff

Why is an IONICON PTR-MS very well suited for your measurement tasks?

We use the CHARON-PTR-TOF 4000 X2 for characterizing VOC and particle composition in atmospheric simulation chamber experiments and in field studies. The combination of particle and VOC information is very useful to improve our understanding of emission sources and the conversion of VOC to aerosol particles. The CHARON Fusion PTR-TOF 10k is used in collaboration with the group of Prof. Christiane Werner (University of Freiburg) to study VOC emissions from plants and their conversion into aerosol particles. It’s high sensitivity and switchable ion source allows online determination of low concentrations of relevant biogenic VOC as well as their oxidation products also in the particle phase.

Dr. Saathoff

Most relevant scientific papers and conference presentations:

Variations of PM2.5 sources in the context of meteorology and seasonality at an urban street canyon in Southwest Germany
Song, J. W., Saathoff, H., Gao, L. Y., Gebhardt, R., Jiang, F., Vallon, M., Bauer, J., Norra, S., Leisner, T., Atmos. Environ., 282, 119147, https://doi.org/10.1016/j.atmosenv.2022.119147 (2022).

SOA yields, and chemical composition of secondary organic aerosol from β-caryophyllene ozonolysis with and without nitrogen oxides between 213 and 313 K
Gao, L., Song, J., Mohr, C., Huang, W., Vallon, M., Jiang, F., Leisner, T., and Saathoff, H.: Kinetics, , Atmos. Chem. Phys., 22, 6001–6020, https://doi.org/10.5194/acp-22-6001-2022, (2022)