Xylem ISE Electrodes Ag-S 60 - Handbuch (Seite 17)

Maintenance
x
For combination electrodes: replenish used reference
electrolyte solution.
x
In case of increased response times of the electrode
perform the following activities:
- Polish the membrane surface using an SF/K
polishing strip. To do so, moisten a polishing trip with
deionized water, and with circular movements polish
the membrane surface for approx. 30 seconds.
- Subsequently place the electrode into diluted
standard solution for approx. 5 minutes.
Storage
x Between two measurements, place the combination
electrode into diluted standard solution.
x Overnight up to one week: Push the closing ring
upwards to close the refilling opening. Then rinse
the combination electrode with deionized water, blot
it dry using a clean paper towel and store it in a dry
place.
x For more than a week: Remove the electrolyte
solution from the reference electrode and rinse the
combination electrode with deionized water, blot it
dry using a clean paper towel and put on the
protection cap. Store the combination electrode in a
dry place.