GE AKTA avant - Regenerate Dried out Ph Electrode

7.6.8 Regenerate dried out pH electrode
Introduction
If the glass membrane dries out it is important to restore the hydrated glass layer.
DescriptionStage
First try Method 1.1
If Method 1 does not help, try Method 2.2
If the electrode continues to be slow or not function properly, replace it with
a new one.
3
Regeneration methods
Use one or both of the following methods to regenerate a dried out pH electrode.
Method 1
Soak the electrode in 1 M KNO
3
for 5 hours or overnight.
Method 2
Soak the electrode in 0.1 M HCl overnight. Rinse it carefully with distilled water. Soak it
in 4 pH buffer for 1 hour.
ÄKTA avant User Manual 29035184 AE 311
7 Maintenance
7.6 Maintenance when required
7.6.8 Regenerate dried out pH electrode