spectrometer is partialy disassembed. ThermoQuest Trace 200 GCMS with closed door Matrix-assisted laser desorption/ionization time-of-flight mass spectrometer Inductively coupled plasma mass spectrometer Photograph of a DART ion source on a JEOL AccuTOF mass spectrometer. Electrospray (nanoSpray) Ion Source in LTQ-FTICR mass spectrometer. Quadrupole Time-Of-Flight tandem Mass Spectrometer (Q-TOF). [ edit ]