Dear Dr. Wan Mohamad Ikhmal,

the breakage or malfunction of any reference electrode could lead to incorrect readings of the potential for free corrosion (Efc) or high instability of this value. Personally, both in the case of potentiodynamic polarization and EIS measurements, I would not consider the data obtained and repeat the measurement in the correct conditions. Already working in optimal instrumentation conditions, sometimes difficult data to explain are obtained .... I would not complicate my life even more !!!

Below you can find some references that may be useful:

-http://www.edi-cp.com/pdf/factors.pdf

-https://www.gamry.com/support/technical-support/frequently-asked-questions/reference-electrode-overview-and-care/

-http://www.consultrsr.net/resources/ref/agcl.htm

Best regards, Pierluigi Traverso

Hello, every serious lab should have a variety of electrodes that are constantly checked for correct potential, leakage rates, impedance and so on.... and each researcher is responsible for his own electrodes.... so, I don't understand your question ;-)

I think it is better to inspect electrode and compare it with standard if there is damage occurred before used and not allow to incorrect reading.

You can't expect an accurate reading from a broken electrode since the original composition and current carrying capacity is distorted. You will apparently be having lower readings after all. I will advise that you change the electrode or use an alternative electrode.

Pierluigi

Always try to standardize you electrode with the ref electrode to see any irregularity and it is easy to check. With damage electrode, your readings would be incorrect giving erroneous conclusion in your research.

Dr.K

Thank you very much for all the answer, here in our lab we only have a single AgCl electrode which most of us from different focus of research shared and used. Recently, I found that the wire in the AgCl electrode is not connected to its upper part where we usually place the connector to potentiostat.

Since we only have one, I try to fix it and try to run it again to see if its working or not and the result I got shows a reading which is quite larger than expected. Hence, thats the reason I ask the question.

Thank you very much again for the answers. I already contact a supplier for the quotation to buy a new one hahaha