2 Installing 8890 GC Columns
The GC/MSD Interface for an 8890 Series GC
52 5977C GC/MSD Operating Manual
The GC/MSD Interface for an 8890 Series GC
The GC/MSD interface is a heated conduit into the MSD for the capillary column.
(See Figure 9.) It is bolted onto the right side of the analyzer chamber, with an
O-ring seal. It has a protective cover which should be left in place.
One end of the interface passes through the side of the GC and extends into the
oven. This end is threaded to allow connection of the column with a nut and
ferrule. The other end of the interface fits into the ion source. The end of the
capillary column extends slightly past the end of the column guide tube and into
the ionization chamber.
Figure 9. GC/MSD interface for an 8890 GC with EI XTR, HES, and CI sources
Ionization
chamber
Analyzer
chamber
Heater/Sensor
assembly
MSD GC oven
Heater sleeve
Insulation
Column
Column
guide tube
Optional entry for CI
reagent gas or JetClean
system hydrogen
Tip seal
assembly
Ion source