Agilent Technologies G6600-90006 manual Install Column Connections, Capillary Columns

Step 9: Install Column Connections

The Burner operates under reduced pressure and there will be a slight vacuum on the end of the column. If a higher outlet pressure for the column outlet is desired, fused silica capillary restrictors may be attached to the end of the analytical column (both capillary and packed) prior to making the Detector connection.

Capillary Columns

Place the column nut over the end of the capillary column. Place the appropriate fused silica adapter ferrule onto column. Remove a few centimeters from the end to remove any particles that may have entered the column. Insert the GC column into the Burner by 108-109 mm from the upper end of the nut (114-115 mm if measured from the flat bottom of the nut). Do not force the column. The pathway is narrow and may take several tries to seat it correctly. Tighten the column nut finger tight, or until sealed using a 7/16" open-end wrench to back-up the hydrogen inlet fitting to prevent it from slipping.

108-109 mm

114-115 mm

Figure 20 Measuring Column Insertion

Packed Columns and Columns with an Outside Diameter > 0.8 mm

Connect a short piece (0.5 m or less) of deactivated fused silica tube, for example 0.32 mm internal diameter, to the Detector end of the column. Follow the procedure for capillary column connection as above.

Operation and Maintenance Manual 61