Agilent Technologies MSD 5977B Series Operating Manual page 85

4 Installing 7890 GC Columns
To Install a Capillary Column in the GC/MSD Interface Using the Self-Tightening Column Nut
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
Procedure
Always wear clean gloves while handling any parts that go inside the GC or the
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analyzer chambers.
The analyzer, GC/MSD interface, and other components in the analyzer
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chamber operate at very high temperatures. Do not touch any part until you
are sure it is cool.
1 Condition the column.
Dangerous voltages exist inside the analyzer chamber, which can result in
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fatal injury. Do not open the analyzer chamber door for any reason. If access is
required, trained service personnel must first disconnect the instrument from
the building power source.
2 Vent the MSD and open the analyzer chamber. (See
The GC operates under high temperatures. Do not touch any GC parts until you
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are certain they are cool.
3 If installed, remove the interface tip seal, spring, and knurled tip seal retainer
4 Slide an interface nut and conditioned ferrule onto the free end of the GC
5 Slide the column into the GC/MSD interface.
Do not break the column off inside the vacuum manifold. Pieces of column
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could fall or be pulled into the turbo pump and damage it.
6 Use the column cutter to score the column 2 cm from its end.
7 While holding the column against the column cutter with your thumb, break
8 Inspect the end for jagged edges or burrs. If the break is not clean and even,
5977B Series MSD Operating Manual
page 136 and"To Open the Analyzer Chamber"
can see the end of the GC/MSD interface.
from the end of the GC/MSD interface.
column. The tapered end of the ferrule must point towards the nut.
the column against the edge of the column cutter.
repeat steps 6 and 7.
(See"To Condition a Capillary Column" on page 83.)
"To Vent the MSD"
on page 176.) Be sure you
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