Agilent Technologies 7000 Series Operating Manual page 87

4 Installing 7890 GC Columns
To Install a Capillary Column in the GC/MS Interface Using a Standard Column Nut


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/MS 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. (See
Electrostatic discharges to analyzer components are conducted to the side
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board where they can damage sensitive components. Wear a grounded
antistatic wrist strap, and take other antistatic precautions before you open the
analyzer chamber.
2 Vent the MS and open the front analyzer chamber. (See
The GC operates under high temperatures. Do not touch any GC parts unless
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you are certain they are cool.
3 Remove the interface tip seal, spring, and knurled tip seal retainer from the
4 Slide an interface nut and conditioned ferrule onto the free end of the GC
5 Slide the column into the GC/MS interface.
6 Hand-tighten the nut.
7 Use the column cutter to score the column 2 cm from the end.
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.
8 While holding the column against the column cutter with your thumb, break
9 Inspect the end for jagged edges or burrs. If the break is not clean and even,
7000/7010 Series TQ GC/MS Operating Manual
page 124 and "To Open the Front Analyzer Chamber"
you can see the end of the GC/MS interface.
GC/MS interface. (See
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.
"To Condition a Capillary Column"
Figure 20 and Figure 21
on page 79.)
"To Vent the MS"
on page 156.) Ensure
on page 83.)
on
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