Metrohm 761 Compact IC - Manual (Page 185)

5.2 Maintenance and servicing
761 Compact IC
175
2 Connect new column to injector
• Remove end caps from column 81.
• Screw inlet end of separating column 81 (note flow direction)
to column connection capillary 28 or to the precolumn (see
section 2.7.7/section 2.7.8).
3 Rinse column
• Place beaker beneath the column outlet.
• Switch on high-pressure pump and rinse column with eluent
for ca. 10 min, then switch off pump.
4 Connect column to detector block
• Screw outlet end of separating column 81 to inlet capillary 45
or suppressor inlet capillary 96.
Changing the separation system
If you wish to replace an IC separating column by a column of a differ-
ent type, proceed as follows (see Fig. 14 and Fig. 16):
1 Remove old column
• Switch off high-pressure pump and wait for pressure to drop.
• Unscrew column 81 from inlet capillary 45 of the detector
block or from the suppressor inlet capillary 96.
• Unscrew column 81 from column connection capillary 28 or
the precolumn.
2 Rinse with eluent
• Place beaker beneath the column connection capillary 28.
• Rinse IC system with eluent used for the separating column
(flow rate 1 mL/min) for ca. 15 min.
3 Connect new column to injector
• Remove end caps from column 81.
• Screw inlet end of separating column 81 (note flow direction)
to column connection capillary 28 or to the precolumn (see
section 2.7.7/section 2.7.8).
4 Rinse column
• Place beaker beneath the column outlet.
• Set flow rate for new separating column.
• Switch on high-pressure pump and rinse column with eluent
for ca. 10 min, then switch off pump.
5 Connect column to detector block
• Screw outlet end of separating column 81 to inlet capillary 45
or suppressor inlet capillary 96.