Metrohm 883 Basic IC plus Manual page 87

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883 Basic IC plus
2 Regenerating the Metrohm Suppressor Module (MSM)
Regenerate the three suppressor units one after the other for approx.
15 minutes using one of the solutions mentioned above.
Connect the capillary labeled regenerant to the outlet of the
￭
high-pressure pump using a coupling (6.2744.040).
Set the flow of the high-pressure pump to 0.5 mL/min in the soft-
￭
ware.
Connect the regeneration solution to the high-pressure pump.
￭
Switch on the high-pressure pump.
￭
If the pressure decreases during regeneration, slowly increase the
flow of the pump to a maximum of 2 mL/min. When doing so,
make sure that the pressure does not exceed 2 MPa!
After approx. 15 minutes, switch off the high-pressure pump.
￭
In the software, use the Step command to switch to the next
￭
suppressor unit and regenerate it as described above.
As soon as all three suppressor units have been regenerated, dis-
￭
connect the capillary labeled regenerant from the coupling.
3 Rinsing the Metrohm Suppressor Module (MSM)
After regeneration, each of the three suppressor units must be rinsed
with degassed ultrapure water for about 15 minutes.
Connect the capillary labeled rinsing solution to the outlet of
￭
the high-pressure pump using a coupling (6.2744.040).
Set the flow of the high-pressure pump to 0.5 mL/min in the soft-
￭
ware.
Connect the ultrapure water to the high-pressure pump.
￭
Switch on the high-pressure pump.
￭
If the pressure decreases during rinsing, slowly increase the flow
of the pump to a maximum of 2 mL/min. When doing so, make
sure that the pressure does not exceed 2 MPa!
After approx. 15 minutes, switch off the high-pressure pump.
￭
In the software, use the Step command to switch to the next
￭
suppressor unit and rinse it as described above.
As soon as all three suppressor units have been rinsed, disconnect
￭
the capillary labeled rinsing solution from the coupling.
4 Connecting the Metrohm Suppressor Module (MSM) to the
IC system
Reconnect the capillaries of the MSM labeled regenerant and
￭
rinsing solution to the IC system.
Reconnect the entry and the exit of the high-pressure pump to
￭
the IC system.
4 Operation and maintenance
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79