Agilent Technologies 7250 Troubleshooting And Maintenance Manual page 91

Accurate-mass quadrupole time-of-flight gc/ms system
Hide thumbs Also See for 7250:
Table of Contents

Advertisement

5
CI Maintenance
Figure 17.
Do not rinse the vial with any solvents. Never expose the inside of the vial to
C AU T I O N
chlorinated solvents or isopropyl alcohol or water - this will result in severe loss
of CI sensitivity.
9 Pull the calibration vial out. You may feel some resistance due to the O-ring
10 Syringe or pipette PFDTD into the vial. With the vial vertical, the liquid should
11 Push the calibration vial into the valve as far as possible.
12 Withdraw the vial 1 mm. This prevents damage when you tighten the collar.
13 Turn the collar clockwise to tighten it. The collar should be snug but not
14 Position the GC next to the MS. See
After removing a calibrant vial, you must purge the calibration valve. Failure to
C AU T I O N
do so will result in damage to the filaments and the electron multiplier.
7250 Accurate-Mass Q-TOF Troubleshooting and Maintenance Manual
Removing the CI calibration vial
around the vial tube.
be just below the end of the internal tube, approximately 70 µL of sample.
overly tight. Do not use a tool to tighten the collar. It does not require that
much force.
page 78.
"To Position the GC Next to the MS"
Collar
Calibration vial
on
91

Advertisement

Table of Contents
loading

Table of Contents