Waters Xevo TQ-GC Overview And Maintenance Manual page 19

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1.
Samples eluting from the column are introduced into the instrument through a heated
transfer line.
2.
The sample is ionized by electrons emitted from a filament.
3.
The ions are focused into a beam by the source, and then filtered according to their mass-
to-charge ratios.
4.
The mass-separated ions pass into the curved T-Wave collision cell where they undergo
collision-induced dissociation (CID), and then pass to the second quadrupole.
5.
The transmitted ions are detected by the photomultiplier detection system.
6.
The signal is amplified, digitized, and sent to the mass spectrometry software.
Figure 1–4: Ion optics overview
Inner source
Outer source
MS1 quadrupole
T-Wave collision cell
MS2 quadrupole
Conversion dynode
Phosphor disk
Photomultiplier
GC oven
April 27, 2020, 715005564 Ver. 01 (previously released as Rev. A)
Page 19

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