Xylem ISE Electrodes CN 60 - Handbuch (Seite 16)

16
Maintenance
• For combination electrodes: replenish used reference
electrolyte solution.
•
In case of increased response times of the electrode
perform the following activities:
– Polish the membrane surface using an SF/K
polishing strip (see R ECOMMENDED
ACCESSORIES ). 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
• Between two measurements, place the
combination
electrode into diluted standard
solution.
• 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.
• 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.