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摘要
The analytical performance of rectilinear ion trap array made up of printed circuit board material has been determined. The experimental results indicate that the intensity of ions determined was affected dramatically by ion kinetic energy, as in 18 eV, the arginine (Arg) ion (m/z 175.2) dominated in the mass spectrum. The ion trap array can perform multiple sample ion storage, mass. selected ion isolation, ion ejection and collision induce dissociation. The ions of m/z 175.2, 117.3 and 71.8 were isolated by stored wave form inverse Fourier transform (SWIFT) notch 50-60 kHz, 75-85 kHz, 130-145 kHz, respectively. The ions of m/z 175.2, 117.3 and 71.8 were ejected selectively using 55 kHz, 80 kHz and 135 kHz sine wave. In helium gas, the fragment ions of m/z 157.2, 130.3 and 117.3 were obtained by the fragmentaion reaction of Arg precursor ion (m/z 175.2) using 102 kHz sine wave. The ion detection efficiency was determined by electric current integration method, which indicated that the ion detection efficiency was estimated to be 46.3% in 256 kHz AC resonance ejection and was about 9.7% in boundary ejection.
- 出版日期2013-1
- 单位复旦大学
