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Nuts and
Ferrules for
Packed
Columns
•
Metal packed columns are usually installed with a metal 2-piece ferrule.
(A commonly used metal packed column is 1/8
″
OD stainless steel. It
uses a 1/8
″
ID stainless steel ferrule.)
•
Glass packed columns are 1/4
″
OD and are installed with a graphite
front ferrule and a metal back ferrule installed backwards. See diagram
below.
Connect a
Packed
Column to
the Injector
Follow the steps below to install a new packed column into your 1041 or
1061 injector. Note that the injector must first be converted for packed
column use by installing the appropriate adapters.
1
Place nuts and ferrules on both ends of column as shown in the
previous diagram.
2
If your column is metal, insert it into the injector fitting and gently
push until it stops. Manipulate the column so the detector end
points into the oven
OR
If your column is glass, insert it into the injector, rotate it slightly so
the detector end is out of alignment with the detector and push
gently until the end is near but not touching the oven ceiling.
3
Hold the column in place and thread the nuts by hand.
4
Tighten the nut finger-tight, then give it a further 3/4-turn with a
small wrench.
A
Two Piece Ferrule
B
Column Nut
C
Back Ferrule
D
Front Ferrule
E
Column Nut
F
Metal Back Ferrule
Installed Backwards
G Graphite Ferrule
