Application of an ion mobility spectrometer with pulsed ionisation source in the detection of dimethyl methylphosphonate and toluene diisocyanate

Wolfgang Baether; Stefan Zimmermann; Frank Gunzer

doi:10.1117/12.883689

12 May 2011 Application of an ion mobility spectrometer with pulsed ionisation source in the detection of dimethyl methylphosphonate and toluene diisocyanate

Wolfgang Baether, Stefan Zimmermann, Frank Gunzer

Author Affiliations +

Proceedings Volume 8032, Next-Generation Spectroscopic Technologies IV; 80320K (2011) https://doi.org/10.1117/12.883689
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

Ion mobility spectrometry (IMS) is a well known technique; offering small size and a sensitivity in the ppb range makes it a typical technique for the detection of explosives or chemical warfare agents. Ordinary IMS devices use in general a continuously working radioactive ionization source. We use a pulsed non-radioactive electron source for ionization which offers the innovative possibility of introducing delay times in between ionization and ion detection. The application and benefits of such a pulsed ionization source in the detection of the chemical warfare agent simulant dimethyl methylphosphonate (DMMP) and the toxic toluene diisocyanate (TDI) will be demonstrated.

Citation Download Citation

Wolfgang Baether, Stefan Zimmermann, and Frank Gunzer "Application of an ion mobility spectrometer with pulsed ionisation source in the detection of dimethyl methylphosphonate and toluene diisocyanate", Proc. SPIE 8032, Next-Generation Spectroscopic Technologies IV, 80320K (12 May 2011); https://doi.org/10.1117/12.883689

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