(1) Vacuum system: 2-stage vacuum:
Mechanical pump and turbomolecular pump
Mechanical pumps are generally front-stage vacuum, that is, in the mechanical The pump reduces the vacuum to a certain level before starting the turbomolecular pump to protect the molecular pump. Therefore, it usually takes a period of time for the instrument to reach a suitable state from atmospheric pressure to vacuum.
(2) Sampling system:
The components (gas or liquid) from the separation device or the liquid or solid sample is injected from the direct injection rod.
(3) Ion source
Ion source: Its main function is to ionize the sample to be analyzed, especially to charge neutral substances.
Differences in the properties of the samples themselves determine that there cannot be a universal ion source for the ionization method, and there are also various types of ion sources.
(4) Mass analyzer
The mass analyzer is the core component of the mass spectrometer, so a mass spectrometer is often named after the type of mass analyzer.
(5) Detector: Currently, photomultipliers are widely used.
(6) Workstation for collecting data and controlling instruments