There are three possible causes for electrode drift:
1. If the pH electrode is "out-of-box" and drifting, the electrode may not be properly conditioned. Refer to the appropriate electrode instruction manual for details.
2. If the pH electrode is stable in buffers but not in the sample, the electrode may be incompatible with the sample or application. For application assistance contact to us.
3. If the pH electrode is drifting in buffers and samples, the electrode may require cleaning. Refer to Question 2.
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