Metrohm 882 Compact IC plus – Cation - Manual (Page 44)

3.14 Guard column ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
36 ￭￭￭￭￭￭￭￭ 882 Compact IC plus – Cation
Note
Metrohm recommends, always to work with guard columns. These pro-
tect the separation column and can be exchanged regularly.
Connecting and rinsing the guard column
1 Connecting the guard column
Caution
When inserting the guard column, always ensure that it is inserted
correctly corresponding to the flow direction (if indicated).
￭ Remove sealing caps and/or stoppers from the guard column.
￭ Fasten the input of the guard column to the column inlet capillary
using a short PEEK pressure screw (6.2744.070).
￭ In case the guard column is mounted on the separation column
with a connecting capillary, connect the included connection
capillary, which is included with the guard column, to the output
of the guard column using the PEEK pressure screw, which is .also
included.
2 Rinsing the guard column
￭ Place beaker under the outlet capillary of the guard column.
￭ Set the flow rate of the high pressure pump according to the data
given in the leaflet of the separation column.
￭ Start the high pressure pump and rinse the guard column approx.
5 minutes with eluent.
￭ Switch off the high pressure pump again.