4 Installing the column
4.4 Proper Placement of graphite Ferrules
51
GC-2010 Plus
NOTE Use only capillary column scoring tool to clip the column. (P/N 221-50595-91)
(4) Remove the slipped graphite with tweezers, etc. At that time, be careful not to damage
the capillary column.
Fig. 4.4.6
NOTE Graphite which becomes lodged under the adjuster must be removed from the column. If alolowed to
remain, the graphite could clog the capillary adapter. If this occurs, unclog the adapter with com-
pressed air or a thin wire.
4.4.2 Positioning the graphite ferrule
Position the ferrules as shown below (Fig. 4.4.7).
If the adjusters were used to fasten the ferrules to the column as described in the previous
section, the ferrules should already be in the proper location.
In the split injection method using the wide bore column, fix the graphite ferrule at a place
15 mm from the column end. The ferrule adjuster included in the accessories is not available
for this case.
Fig. 4.4.7 Attaching position of graphite ferrule
Remove this additional graphite.
34 mm
69 mm
FID Detector column
insertion length
Split/Splitless
WBI
Injection port column
insertion length
Capillary column
Graphite ferrule
50 mm
TCD Detector column
insertion length
15 mm
When the splitless
analysis is
performed using the
wide bore column