ActionStep
Click Prepare for Calculation.3
Result: The pH valve switches to the calibration position.
Prepare at least 10 ml storage solution by mixing equal volumes of a stan-
dard buffer, pH 4, and a 1 M Potassium Nitrate (KNO
3
) solution.
4
Fill a syringe with approximately 10 ml of the storage solution. Connect the
syringe to the pH valve port Cal, and inject the storage solution.
5
Click Close.6
Result: The pH valve switches back to the default position and the Calibration
dialog closes. No calibration is performed.
306 ÄKTA avant User Manual 29035184 AE
7 Maintenance
7.6 Maintenance when required
7.6.6 Storage of the pH electrode
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