Metrohm 833 IC Liquid Handling Unit - Manual (Page 78)

8 833 IC Liquid Handling Ultrafiltration Unit
833 IC Liquid Handling Unit / Instructions for Use 8.833.1003
70
6 Assemble ultrafiltration cell
• Slide 6.2057.020 Cell holder of ultrafiltration cell 66 into a free
holding guide 58 in the column compartment of the IC
Separation Center.
• Insert the screwed-together ultrafiltration cell 66 in its
6.2057.020 Cell holder so that the heads of the screws 70 are
located in the opening provided for them in the holder.
Fig. 23 Inserting the ultrafiltration cell in the holder
8.3 Connect filtration cell
To connect filtration cell 66 to the IC system proceed as follows (see
also Fig. 24):
Pump tubing
1 Connect pump tubing to the 833 Liquid Handling
Unit
• Attach the two pieces of pump tubing 6.1826.030 (orange-
yellow stopper) and 6.1826.070 (yellow-yellow stopper) as
described in Section 3.2, see Fig. 7.
2 Connect pump tubing for sample
• Screw 6.1803.070 PTFE capillary 77 (23 in Fig. 7) onto
PEEK coupling 21 (6.2744.160) at the delivery side of pump
tubing 75 with the yellow-yellow stoppers (6.1826.070)
using a PEEK compression fitting 17 (6.2744.010) (see Fig.
7).
• Attach one end of aspiration capillary 16 (6.1803.080) to
PEEK coupling 18 on the suction side of the yellow-yellow
pump tubing 75 using a PEEK compression fitting 17
(6.2744.010) (see Fig. 7).
• Immerse the other end of aspiration capillary 16 in a
container with sample solution and fix it in position.