Metrohm Inline-Ultrafiltration - Manual (Page 22)

3.4 Deaerating the ultrafiltration cell
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IC equipment: Inline-Ultrafiltration
3.4 Deaerating the ultrafiltration cell
Every time a new filtration membrane is inserted, the air which may still be
present in the filtration cell and in the capillaries must be removed. To
accomplish this, rinse out all capillaries with e.g. ultrapure water.
NOTE
The entire filtration system must be completely connected prior to the
rinsing procedure.
Rinsing the ultrafiltration cell
1 Settings in the software
￭ Immerse the needle of the Sample Processor into the rinsing solu-
tion.
￭ Switch on the peristaltic pump.
￭ Rinse the filtration system with ultrapure water for approx. 5 min.
2 Monitoring the rinsing process
￭ Check whether equal amounts of solution are emerging from
both feed lines to the waste container.
￭ Check whether all the capillary connections from the rinsing solu-
tion through the peristaltic pump and the ultrafiltration cell are
leak-tight all the way to the waste container.
If liquid is escaping somewhere, then tighten the corresponding
connection or redo the connection.