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Ion mobility spectrometry (IMS) is a widely used method for detecting low ppb-level concentrations of hazardous compounds, such as chemical warfare agents, explosives, and pollutants in air. Simple instrumentation combined with high sensitivity and high selectivity are major advantages of this technique. We are currently developing a miniaturized low-cost IMS that can be used in various applications,...
A numerical model has been used to study the effect of various design parameters on the resolution of our miniaturized ion mobility spectrometer (IMS). This multiphysics model is based on a finite element approach and gives a detailed insight into the convection and migration of gaseous ions in the spectrometer. It can be also applied to other aspiration condenser type IMS. As reported earlier, physical...
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