Harmful influences of confinement field non-linearities in mass identifying for a Fourier transform quadrupole ion trap mass spectrometer

The Fourier transform operating mode applied to a quadrupole ion trap results in an axial secular frequency spectrum of the simultaneously confined ions. During confinement, the ion trajectory must be as pure as possible, giving only one frequency peak for an ion population with the same mass-to-charge ratio. null The simulation work presented here examines the harmful influences of the spatial defects (here, mainly electrode truncation) of the...