CI Maintenance 5
Troubleshooting and Maintenance Manual 127
To Refill the CI Calibrant Vial
Materials needed
• PFDTD calibrant (8500-8510)
Procedure
1 Set the reagent gas flow to Gas Off.
2 Vent the MS.
3 Remove the capillary column from the GC/MS interface.
4 Pull the MS away from the GC to expose the calibration vial and valve. See
page 86.
5 Loosen the collar holding the calibration vial in place. Do not remove the
collar.
6 Remove the calibrant vial. See Figure 18.
7 Fill the vial no higher than the bottom of the internal tube with fresh
PFDTD calibrant (8500-8510).
8 Replace the vial and tighten the collar.
9 Reposition the MS next to the GC. See page 86.
10 Reinstall the capillary column.
11 Pump down the MS.
12 In Instrument Control panel, select the MS Tune icon to display the GC-QQQ
Tune dialog box. Select the Manual Tune tab then select the Ion Source tab to
display the ion source parameters.
13 Turn off the Emission by clicking in the check box.
14 Purge the calibration valve by clicking in the CI Cal Valve check box to open
the calibration valve. Close the CI Cal Valve after 30 seconds.
Do not rinse the vial with any solvents. Never expose the inside of the vial to
chlorinated solvents or isopropyl alcohol or water — this will result in severe loss of CI
sensitivity.
After removing a calibrant vial, you must purge the calibration valve. Failure to do so
will result in damage to the filaments and the electron multiplier.
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