User guide

2.8 Separating columns and suppressor module
732 IC Detector / 733 IC Separation Center
37
9191 Suppressor outlet capillary for
H
2
SO
4
9494 Suppressor outlet capillary
for eluent
9292 Suppressor outlet capillary for
H
2
O
9595 Suppressor module
9393 Suppressor inlet capillary for
H
2
O
9696 Coupling (6.2620.060; steel) or
Coupling (6.2744.040; PEEK)
2.8.6 One-channel system with suppressor module
In the case of the one-channel system with suppressor module, first the
IC separating column is installed in the 2.733.0X30 IC Separation Cen-
ter (see Fig. 17) and then the suppressor module is connected to the
752 Pump Unit needed for operation (see Fig. 18). Proceed as follows:
1 Connect column to injector
• Remove end caps from column 7676.
• without precolumn:
Screw inlet end of separating column 7676 (note flow direction)
to column connection capillary 6767 mounted on the injector.
• with precolumn in twin cartridge holder:
Screw inlet end of separating column 7676 (note flow direction)
to outlet capillary 7272 (see Fig. 15).
• with precolumn in cartridge head:
Install separating column 7676 (note flow direction) in the car-
tridge head as described in section 2.7.3 (see Fig. 15).
2 Rinse column
• Place a beaker beneath the column outlet.
• Switch on 709 IC Pump and rinse column with eluent for ca.
10 min.
• Switch off IC pump.
3 Connect column to suppressor module
• Cut inlet capillary 8989 marked with "Eluent" of suppressor
module 9595 to the desired length using a sharp cutting tool
(e.g. razor blade).
• Screw inlet capillary 8989 to outlet end of separating column 7676
using a 6.2744.010 Compression fitting.
4 Fix column
• Insert one or two column holders 8484 (6.2027.030, 6.2027.040
or 6.2027.050) in mounting rails 8383 and fasten separating
column in the column holder.
5 Connect suppressor module to detector block
• Cut outlet capillary 9494 marked with "Detector" of suppressor
module 9595 to the desired length using a sharp cutting tool
(e.g. razor blade).