Characterization of ion trapping motion in the dual cell ion cyclotron resonance spectrometer: experimental and theoretical studies

Abstract

Ions produced in one cell of a dual cell Fourier transform-ion cyclotron resonance mass spectrometer are partitioned by temporarily grounding the conductance limit separating mass two cells. Theoretical predictions for transfer behavior were produced by used of Runge—Kutta integration and an elliptical function method to calculate ion motion during the transfer period. Comparison between the experimental and theoretical results indicates that ion transfer between cells is occurring on a more harmonic potential surface than expected. These results suggest that only ions formed near the center of the source cell can be effectively transferred and/or detected.