High-field asymmetric-waveform ion-mobility spectrometry

Detection Technology

Published in Rick Houghton, William Bennett, Emergency Characterization of Unknown Materials, 2020

High-field asymmetric waveform ion mobility spectrometry (FAIMS) is a newer technology and a variant of conventional Ion Mobility Spectrometry (IMS). It is used to separate gas phase ions at standard temperature and pressure as well as slightly higher and lower temperature and pressure.

Determination of chemical warfare agents by low cost differential mobility spectrometry

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Journal Information

Published in Instrumentation Science & Technology, 2021

Dongjie Zhao, Xianqiang Li, Siqing You, Xi Yang, Jun Liu

In recent years, a series of rapid analytical methods have been available for gas sensors, as advanced micro- and nano-fabrication technology enables miniaturization of the core components into microsized volume.[5,6] High-field asymmetric waveform ion mobility spectrometry (FAIMS), also called differential mobility spectrometry (DMS),[7] is an atmospheric pressure gas-phase separation technique which separates gas phase ions based upon nonlinear compound-dependent differences of their mobilities in alternating high and low electric fields.[8] DMS has attracted attention due to its small volume, low cost,[9] and high sensitivity.[10,11] Compared other gas sensors, DMS uses spectral analysis to determine gas molecules with high resolution and sensitivity, which has been employed in environmental monitoring, food safety, explosives, and drug development.[12–14]

High-field asymmetric-waveform ion-mobility spectrometry

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Detection Technology

Determination of chemical warfare agents by low cost differential mobility spectrometry