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- Posts: 60
- Joined: Fri Jul 01, 2011 6:15 am
One of my colleagues asked about a problem with the pH-meter. Apparently a Micro-electrode we are using, which was taken into use in May 2015, have constantly been drifting (dropping voltage) over time. Now it had the pH 4.0 buffer outside of set limits.
For now I don't have more information about this electrode, but could it be considered normal aging for an electrode to be worn out in approximately half a year? We are not a large scale lab where pH-measurements is used on a daily basis, the manufacturer however seem to think of this issue as normal pretty much.
My limited knowledge of electrodes still tells me this is weird to wear out an electrode in such a short period of time. What are your input on this issue? Could it be anything else affecting the electrode to over time drop in voltage? Other electrodes seem to work as normal, so it should be electrode specific.
Thank you