Program

Poster Presentations

Day 1, May 15（Tue.）　　Poster

1P-26　　PDF

Detailed Analysis of Temporal Ion Cloud Distributions for Peak Coalescence Phenomena in FT-ICR Mass Spectra : A Many-Particle Simulation

(Hiroshima City Univ.)
^oMakoto Fujiwara, Naohisa Happo, Satoshi Takahashi, Koichi Tanaka

In a previous work, we have focused on the simulation for peak coalescence phenomena on FT-ICR mass spectra at a high magnetic field. The correlation between Coulomb-interaction-induced degradation of excited coherent ion cyclotron motion and FT-ICR mass spectral peak shape has been investigated in detail by many-particle simulation. In the present work, we have analyzed in more precise detail temporal variations for the ion cloud distributions during detection and from the results it has been found that the phase locking may occur for a part of remained (non-ejected) m/z 130.1 ion cloud with m/z 130.0 ion cloud. The simulation results suggest that the relationship between the Coulomb-interaction-induced degradation and the spectral peak shape is quite complicated especially at a high magnetic field.