B6.3 - Detection and Classification of Explosive Compounds in Presence of Interferents Utilizing Laser Ion Mobility Spectrometry

A. Langmeier, C. Oberhuettinger, W. Heep, H. Oberpriller, S. Beer, M. Kessler, J. Goebel & G. Mueller
Ion Mobility Spectrometers (IMS) are frequently used to screen airline passengers and their luggage for explosives and explosive by-products. Traditionally, in IMS technology different kinds of molecules are distinguished on account of their different ion mobilities in a weak electric field. In this paper we report on methods of resolution enhancement applicable to IMS drift time spectra. We find that a robust classification of trace explosives can be obtained by algorithmic resolution enhancement of the...