P9.5 - Compact, ultra-fast polarity switching ion mobility spectrometer with gas chromatographic pre-separation
- 15. Dresdner Sensor-Symposium 2021
2021-12-06 - 2021-12-08
- P9. Miniaturisierte Sensorik und Messsysteme
- M. Sehlmeyer, A. Ahrens, A. Bohnhorst, M. Hitzemann, S. Zimmermann - Leibniz University Hannover, Hannover/D, H. Brües, A. Walte - Airsense Analytics GmbH Schwerin/D, V. Ruzsanyi - University of Innsbruck/A
- 311 - 315
Ion mobility spectrometers (IMS) are highly sensitive measurement devices that allow detection of trace gases in air in the low pptv range in less than one second. A gaseous sample is characterized by ionization and subsequent drift of the formed ions in an electric field at atmospheric pressure. In this way, different ion species can be separated based on their specific ion mobility in a neutral gas.