フーリエ変換イオンサイクロトロン共鳴分析におけるイオンの選択的励起

抄録

Recent progress in electronics has made it possible for us to utilize commercial instruments in building an excitation and data sampling system for Fourier transform ion cyclotron resonance (FT-ICR) spectrometry.
An arbitrary waveform generator was used to excite mass-selected ions trapped in an FT-ICR cell and a digital oscilloscope was used to sample and process signals of resonant ions. Excitation waveforms were synthesized from sinusoidal waves of specific frequencies to excite the ions of various mass-to-charge ratios. Simultaneous excitation/ejection experiment was performed by varying amplitude of each frequency component in the excitation waveform. The arbitrary waveform generator has been proved to be useful for SWIFT (stored waveform inverse Fourier transform) experiment as an interface between the computer and the FT-ICR spectrometer.