Measurement of the ions mobility distribution at a new ion mobility analyzer with separation in axial direction to the flow

The performance of the newly developed electrical mobility analyzer which classifies ions in axial direction of gas flow was confirmed with a favorable comparison with the value measured by a masspectrometer. The analyzer was capable of detecting ions as well as nanometer sized particles and suggested that a low concentration of SO2 triggers the nucleation of nanometer size particle at water content of 3500ppm.