Two pair of peaks of quinone/hydroquinone redox probe on GCe?

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Abdelkader BOUAZIZ

Dear all, the following links provide additional information related to the chemical structure of the redox pairs and the physical structure of the electrode. My Regards

https://www.researchgate.net/publication/230074178_Voltammetry_of_Electroinactive_Species_Using_QuinoneHydroquinone_Redox_A_Known_Redox_System_Viewed_in_a_New_Perspective

https://doi.org/10.1021/acsaem.9b02357