Agilent Technologies 5975T LTM GC Operation Manual page 58

2
Installing LTM Columns
Never exceed the maximum column temperature.
C A U T I O N
15 Hold the temperature of 10 °C above your highest analytical temperature
Be careful! The guard column heated enclosure or internal accessories may be hot
WA R N I N G
enough to cause burns. If either is hot, wear heat-resistant gloves to protect your
hands or allow the parts to cool before beginning the work.
16 Cool down the enclosure and attach the MSD guard column to the LTM
17 Check for leaks.
18 If your method requires hydrogen carrier gas, disconnect the current
19 With a column flow of 30 cm/s, wait for 5 to 10 minutes before increasing
See also
For more information about installing a capillary column, refer to the
application note Optimizing Splitless Injections on Your GC for High
Performance MS Analysis, publication number 5988-9944EN.
58
for 3 hours while allowing a flow rate of 30 cm/s through the column.
column module outlet union.
carrier gas supply from the instrument and attach the hydrogen supply.
Verify that the analyzer is under vacuum and the vacuum pumps are
working before opening the hydrogen supply line. From the ChemStation,
change the configured carrier gas to hydrogen.
the LTM column temperature to a low standby temperature.
5975T LTM GC/MSD Operation Manual