2
Functional Description
Mass Spectrometer
28 TSQ Series Hardware Manual Thermo Scientific
Figure 22. Lenses L11 (left) and L12 (right)
Mass Analyzer
The mass analyzer separates ions according to their mass-to-charge ratio and then passes them
to the ion detection system. The mass analyzer on the TSQ mass spectrometer consists of
three quadrupole rod assemblies (Q1, Q2, and Q3) and three lens sets. See Figure 23.
Figure 23. Mass analyzer, ion detection system, and ion optics
Ion detection system
Lens L4
Q3 quadrupole
Lenses L31, L32, L33
Q2 collision cell
Lenses
L21, L22, L23
Q1
quadrupole
Q0
quadrupole
Ion source
interface
Q00 rf
lens