Gas Ion Distillation to Improve IMS

Our CTO Osmo Anttalainen has successfully defended his PhD dissertation at University of Helsinki. The topic of the dissertation was Time-Resolved Ion Separation Using Kinetics of Gas Phase Positive Ion Molecule Reactions at Ambient Air Pressure. Congratulations Osmo!

Reaction kinetics in atmospheric pressure were studied in order to control the formation of positive product ions in VOC mixtures. The dissertation flows from modelling to a realized experimental setup, where the kinetic-based temporal separation in IMS with mixture of five compounds was demonstrated for the first time.

The results demonstrate that kinetic separation of compounds in atmospheric pressure can be used to enhance instrument sensitivity and detection capabilities. The method could be used as a pre-separator in mobile IMS instruments or in mass spectrometers.

Osmo Anttalainen’s dissertation Time-Resolved Ion Separation Using Kinetics of Gas Phase Positive Ion Molecule Reactions at Ambient Air Pressure was publicly examined on 1.10.2024 at University of Helsinki.

The work can be found from the publication database of the University of Helsinki with the above link. Additionally, the work has been noted in Kemia-lehti, you can read the article here (in Finnish).