Analysis of PH measurement error
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Is it reasonable to say that zero drift in PH measurement is caused by changes in the reference electrode circuit, while linear offset is caused by changes in the PH electrode circuit? When this occurs, calibration with a standard solution is required.
This post was last edited by qugd on 2022-5-30 11:11. It’s not that absolute; there are many reasons for deviations, and zero point and slope are merely parameters used during calibration.