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Part 1. Capillary columns Columns and Traps
Procedure: Installing capillary columns in NPD and FID detectors
4. If your column inside diameter is less than 100 µm:
Position the column so it extends above the ferrule by 48 mm (capillary
optimized fitting) or 68 mm (adaptable fitting). Mark the column with typewriter
correction fluid even with the column nut.
5. Insert the column in the detector. Slide the nut and ferrule up the column to
the detector base. Finger tighten the column nut until it starts to grab the
column.
48 mm
Mark column here
68 mm
68 mm
68 mm
mm
Mark column here
P
P
P
P
mm48
Mark column here
68 mm
Mark column here
Capillary
optimized fitting
Adaptable fitting
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