2
Principles of Operation
Overview of the MS System
6 TSQ Altis, Quantis, and Fortis Hardware Manual Thermo Scientific
No. Description Function
Inlet Region
1. Inlet: autosampler (optional), LC pump (optional),
Syringe pump, divert/inject valve
The sample enters the MS from the inlet.
Mass Spectrometer
2. API source: H-ESI, APCI, or APPI Generates ions.
3. Vacuum system Creates a vacuum for regions 4, 5, 6, and 7.
4. Ion optics In the ion optics and mass analyzer, the scan
functions manipulate the ions.
5. Mass analyzer
6. Ion detection systems As the ions strike the dynode detector, they release a
cascade of electrons. These electrons generate a
voltage signal.
7. Instrument control electronic assemblies Control the MS components.
Data System
8. Monitor The data system processes the voltage signal and
displays it as a graph that can be printed.
9. Computer
10. Printer (optional)