2 Installing 8890 GC Columns
To Install a Capillary Column in the GC/MSD Interface Using a Standard Column Nut
5977B Series MSD Operating Manual 49
10 Adjust the column so it extends this specified distance from the end of the
transfer line.
• For an XTR, SS, Inert, or CI Source Installation (See Figure 5 on page 44.),
the column extends about 1 mm.
• For an EI HES Installation (See Figure 6 on page 44.), the column extends
4 to 5 mm.
Use the flashlight and magnifying loupe if necessary to see the end of the
column inside the analyzer chamber. Do not use your finger to feel for the
column end.
11 Hand-tighten the nut. Ensure the position of the column does not change as
you tighten the nut. Do not over tighten the nut.
12 Check the GC oven to be sure that the column does not touch the oven walls.
13 Tighten the nut 1/4 to 1/2 turn.
14 Check the nut’s tightness after one or two heat cycles; tighten additionally as
appropriate.
15 Install the spring, tip seal, and knurled tip seal retainer on the GC/MSD
interface. (See“To Install the GC/MSD Interface Tip Seal” on page 50.) Do
not use the tip seal, spring, and knurled tip seal retainer with an EI SS or Inert
source. The interface socket on these sources does not allow the tip seal
installation to fit. (See Figure 64 on page 199.)
16 Gently check the alignment of the ion source and the interface tip seal.
When the ion source is aligned correctly, the analyzer chamber can be
closed all the way with no resistance except the spring tension from the
interface tip seal.
17 You can align the ion source and interface tip seal by wiggling the side plate
on its hinge. If the door still will not close, contact your Agilent Technologies
service representative.
18 Close the analyzer chamber door. (See “To Close the Analyzer Chamber” on
page 220.)
Use care when placing the tip seal on the end of the GC/MSD interface to avoid
damaging the column.
Forcing the analyzer door closed if these parts are misaligned will damage the
tip seal or the interface or the ion source, or will keep the sideplate from
sealing.
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