Agilent Technologies 5975T LTM GC Operation Manual page 40

2
Installing LTM Columns
MSD Guard Column
Interface column nut
GC/MSD interface
(GC end)
Analyzer chamber
GC/MSD interface
(MSD end)
1 to 2 mm
Figure 8 Installing a guard column in the GC/MSD interface
4 Slide the column into the GC/MSD interface
5 Break 1 cm off the end of the column. Do not let any column fragments fall
6 Clean the outside of the free end of the column with a lint-free cloth
7 Adjust the column so it projects 1 to 2 mm past the end of the interface.
8 Hand-tighten the nut. Make sure the position of the column does not change
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out through the analyzer chamber.
into the analyzer chamber. They could damage the high vacuum pump.
moistened with methanol.
Use the flashlight and hand lens if necessary to see the end of the column
inside the analyzer chamber. Do not use your finger to feel for the column
end.
as you tighten the nut.
MSD
5975T LTM GC/MSD Operation Manual
Guard Column
Enclosure
(Figure 8) until you can pull it