Air spectrum measured with miniRUEDI

The following figure shows an m/z scan obtained from a miniRUEDI analysis of ambient air. The electron impact ionization energy of the ionizer (EE) was set to the default value of 70 eV for this measurement. Using lower EE values would reduce double ionisation. This chart is useful to assess the occurrence and importance of interferences of peak signals related to different gas species at the same m/z value.