Improved Capacity Trapped Ion Mobility Spectrometry

In conventional drift tube ion mobility spectrometry, the overall duty cycle is principally limited by the injection of ions into the mobility analyzer. The initial ion pulse must be kept relatively small with respect to the drift time such that the resolving power is not significantly reduced. While multiplexed strategies can improve the sensitivity and duty cycle, peak aliasing still remains problematic. In this poster, a new analyzer with a 2-fold enhancement in the storage capacity is evaluated.