Digital Ion Trap Mass Spectrometer Measurement System

This paper builds a portable digital ion trap mass spectrometer prototype by designing the vacuum system, control circuit system, and host computer of the ion trap mass spectrometer. Dextromethorphan and ketamine samples were tested. At a scanning rate of 5000Th/s, the resolution of the dextromethorphan sample reached 0.26Th, and the resolution of the ketamine sample reached 0.33Th. The actual mass spectrum collected by the prototype is basically consistent with the theoretical mass spectrum.