Analytical Performance of Printed Circuit Board Ion Trap Array Mass Analyzer with Electrospray Ionization

The analytical performance of rectilinear ion trap array made up of printed circuit board material has been investigated. The experimental results indicated the intensity of ions determined were dramatically affected 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, collision induce dissociation. The ions of m/z 175.2, 117.3 and 71.8 were isolated by SWIFT notch 50-60 kHz, 75-85 kHz and 130-145 kHz, respectively. The ions of m/z 175.2, 117.3 and 71.8 were selectively ejected using 55, 80 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 fragmentation reaction of Arg precursor ion (m/z 175.2) using 102 kHz sine wave. The ion detection efficiency was investigated by electric current integration method, which indicated that the ion detection efficiency was estimated to be 46.3% in 256 kHz AC resonant ejection and was about 9.7% in boundary ejection.

The analytical performance of rectilinear ion trap array made up of printed circuit board material has been investigated. The experimental results indicated that the intensity of ions determined were dramatically affected by ion kinetic energy. The ion trap array can perform multiple sample ion storage, mass-selected ion isolation, ion ejection, collision induce dissociation.Figure optionsDownload as PowerPoint slide