ABSTRACT
Quadrupole ion trap mass spectrometry has been a continually growing technology since its invention in 1953 and, over the past two decades following its commercialization, it has developed to be a work-horse instrumental technique in many
13.1 Introduction ................................................................................................ 593 13.2 Background ................................................................................................. 594
13.2.1 Ion Inuences on Analytical Performance ................................... 594 13.2.2 Geometry of High-Capacity Ion Traps ......................................... 595
13.2.2.1 Geometry Denitions ................................................... 595 13.2.2.2 Ion Capacity: A Geometric Exploration ....................... 595
13.2.3 Ion Ejection ................................................................................... 597 13.2.3.1 Resonant Ion Ejection ................................................... 597 13.2.3.2 Ion Ejection in Non-Linear Fields ................................ 598
13.3 The Spherical High-Capacity Ion Trap: Experimental Evidence ...............600 13.4 Model for ‘Ideal’ Ion Ejection ....................................................................600 13.5 Simulations .................................................................................................604 13.6 Experimental Evidence for A New Ion Ejection Model .............................606
