Effect of High Voltage Module Performance on Digital Ion Trap Mass Spectrometer

The performances such as stability and voltage regulation of the power supply modules have great influence on properties of the ion trap mass spectrometer. Based on the digital linear ion trap mass spectrometer under development, the performance of the instrument was studied， when the improved high voltage module was applied using benzene, toluene, xylene, chlorobenzene mixture of standard gas as the measurement target. The results show that the mass stability and ion intensity in MS, ion isolation efficiency and ion dissociation efficiency in MS² have a great improvement. The mass stability improves 100, and ion intensity increases 10% for the MS; ion isolation efficiency of the MS² increases 1.6 times.