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Eila Myllylä, Chi-En Shan, Olga Gerasimenko, Judit Nyári & Nhat Nguyen |
Amperometry is a technique used to detect ions in a solution based on electrical current produced by electrochemical reaction of an electro-active species.
A reduction reaction will occur when a suitable potential is applied to the electrode: ox + ne → red
A concentration gradient of ox caused by its depletion at the electrode surface leads to mass transport by diffusion. This leads to a flux of ox, Jox (mol/m2s) that related to the reduction current, ired, through the electrode with an area A according to Faraday’s law:
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