Table of Contents
Advertisement
5
CI Maintenance
To Replace the Chemical Ionization Gas
Purifier
Materials needed
•
•
•
•
The chemical ionization gas purifier needs to be replaced after four tanks of
reagent gas. This frequency may vary depending on purity of the gas and care
taken in uncapping and installing the gas purifier. A large leak upstream from the
gas purifier can quickly exhaust the reduced metal of the oxygen and moisture
traps.
Procedure
1 Turn off gas flow to the purifier.
Do not remove the caps until you are ready to install the gas purifier. Only
C AU T I O N
remove the caps in the gas flow to prevent contamination by air.
Methane is flammable. Extinguish all flames in the area before turning on gas
WAR N IN G
flow.
2 Disconnect the fittings on the old purifier.
3 Remove the ferrules from the tubing at the outlet of the gas purifier. Using the
4 Install the new purifier.
5 Turn on the gas flow, and purge the new purifier.
6 Cap the old purifier, and prepare it to be sent for regeneration. See the
88
Chemical ionization gas purifier (5190-9071)
Front ferrule for 1/8-inch tubing (5180-4110)
Rear ferrule for 1/8-inch tubing (5180-4116)
Tubing cutter (8710-1709)
tubing cutter, cut off the end of the tubing with the ferrules.
instructions on the label.
7250 Accurate-Mass Q-TOF Troubleshooting and Maintenance Manual
Advertisement
Table of Contents
Troubleshooting
