Metrohm 790 Personal IC - Manual (Page 40)

2.7 Precolumns and separating columns
790 Personal IC
31
56 56 56 56 55 55 55 55 57 57 57 57 58 58 58 58 59 59 59 59 58 58 58 58 57 57 57 57 60 60 60 60 57 57 57 57 46 46 46 46 20 20 20 20 61 61 61 61 62 62 62 62 63 63 63 63
Fig. 11: Installation of precolumn cartridges with cartridge head
20 20 20 20 Column connection capillary
from injector
59 59 59 59 Precolumn cartridge
46 46 46 46 Compression fitting (6.2744.010) 60 60 60 60 Steel spacer (6.2821.080)
55 55 55 55 Manufit housing 61 61 61 61 4 Steel meshes (6.2821.020)
56 56 56 56 Steel connector
(of IC separating column)
62 62 62 62 Manufit pressure screw
57 57 57 57 PTFE gasket (6.2821.010) 63 63 63 63 IC separating column
58 58 58 58 2 Steel meshes (6.2821.020)
3 Connect precolumn
• Fit PEEK compression fitting 46 46 46 46 to the column connection
capillary 20 20 20 20 mounted on the injection valve 22 22 22 22 (see section
2.3.4).
• Screw column connection capillary 20 20 20 20 to Manufit housing 55 55 55 55.
The precolumn cartridge built into the cartridge head can only be
rinsed together with the separating column (see section 2.7.7/8). This
increases the rinsing time by approx. 20 min.