Vacuum System 6
Troubleshooting and Maintenance Manual 107
IRM Calibration Valves
The IRM tuning compound is C
9
F
15
N
3
. There is one IRM calibration valve
allowing the IRM compound held in a vial to enter the ion source. The vial
contains the Internal Reference Mass Compound PFET
2,4,6-tris (Pentafluoroethyl)-1,3,5-triazine. The entry of the mass calibration
compound into the ion source is controlled by the MassHunter Workstation
software.
Figure 21 IRM calibration valves
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