GE AKTA avant User Manual page 237

System storage
If the instrument is not going to be used for a couple of days or longer, also perform the
following:
•
Column cleaning
After a method run is completed, perform the following:
•
Column storage
If the column is not going to be used for a couple of days or longer, also perform the
following:
•
pH electrode storage
If pH monitoring will not be used for a week or longer, perform one of the following ac-
tions:
•
•
In the following situations, in order to increase the lifetime of the pH electrode, use the
By-pass position and store the electrode in storage solution inside the pH flow cell:
•
•
•
For further information on how to prepare the pH electrode for storage, refer to
Section 7.6.6 Storage of the pH electrode, on page 305.
ÄKTA avant User Manual 29035184 AE
Fill the system and inlets with storage solution (e.g., 20% ethanol) using the System
CIP method.
Clean the column with one or several cleaning solution(s) using the Column CIP
method.
Fill the column with storage solution (e.g., 20% ethanol) using the Column CIP method.
Inject new storage solution into the pH flow cell.
Replace the pH electrode with the dummy electrode that is installed in the pH valve
on delivery.
pH monitoring is not needed during the run.
Organic solutions are used.
Extremely acidic or extremely basic solutions are used.
5.9 Create a method and perform a run
5.9.4 After run procedures
5 Operation
237