Ph probe, Storing the ph electrode, Cleaning the ph electrode – Bio-Rad ChromLab™ Software User Manual
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pH Probe
Instrument Guide
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pH Probe
Storing the pH Electrode
When not in use, store the pH electrode in storage solution. See Table
155 for recommended storage solutions.
Tip:
Set the pH valve to Bypass mode until it is needed. This ensures the pH
electrode remains in storage.
To store the pH electrode
1.
Start ChromLab software.
2.
Choose Tools > Calibrate to open the Calibration dialog box.
3.
Select pH on the Calibrate dropdown list.
4.
Press Start to set the pH monitor to Calibration mode.
5.
On the pH valve, inject approximately 10 ml of pH electrode storage solution
through the Cal In port.
6.
Click Close to close the Calibration dialog box.
Note:
You might see a ChromLab message warning you about
interrupting calibration. You can safely ignore this message. Any previous
calibration performed on the pH valve is saved.
Cleaning the pH Electrode
To remove soluble contaminants
Sequentially immerse the electrode in the following solutions for 1 min each:
0.1 M HCl
Distilled H
2
O
0.1 M NaOH
Distilled H
2
O
0.1 M HCl