How does gamma radiation affect the stability of Ag/AgCl quasi-reference electrodes (QREs)?

Label:chem

Topic
Gamma radiation can interact with the surrounding environment to create oxidizing and reducing species, which may alter the stability of reference electrodes. Ag/AgCl QREs are exposed to gamma radiation in electrochemical cells, and their stability is crucial for accurate corrosion measurements.
Answer
The study shows that Ag/AgCl QREs remain stable under gamma radiation exposure for at least 33 days. The open circuit potential (OCP) measurements indicate no significant difference between irradiated and non-irradiated QREs. Additionally, in-situ cyclic voltammetry measurements using an internal reference (ferrocenemethanol) confirm the stability of QREs for up to 48 hours under radiation. The stability is attributed to the AgCl coating, which remains intact and does not significantly alter the electrode's potential under the tested conditions.
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