What you can do is use ferrocene as an internal reference, by performing cyclic voltammetry in your chosen system, adding a small quantity of ferrocene to your electrolyte to determine where its redox peaks appear. The standard potential for ferrocene in acetonitrile (is that the solvent you mean by ACN? If not there are other values reported for different organic solvents) has been reported as +0.31 V vs aqueous SCE (Bard and Faulkner, Electrochemical Methods: Fundamentals and Applications). You could report your potentials versus SCE by simply shifting them by the difference between the potential you get your ferrocene peaks at and this reported value, or further convert it to SHE if you wanted to by then using the standard conversion between SCE and SHE.

Thank you very much for your attention.

Hi,

I am going to do this as well. I filled my electrode with 0.1 M TBAPF6(tetrabutyl ammunium hexaflurophosphate) and 0.01 M Ag/AgNO3 in ACN. I would like to ask is that OK as solution to fill the electrode?

Thanks

That should be fine, as long as you check at some point your potentials versus ferrocene or another such standard to double check what your potentials really are...

Thanks Daniela,

I checked it with a solution containing Cobalt complex and it seams to have 30 mV of deviations.

I also have ferrocene, what are the oxidation and reduction peaks for ferrocene..

Regards,

I am trying to do this as well and I am having issues with the CV. Whenever I use the Ag/AgNO3 electrode, I get a reduction at -1.2 V. Does anyone know what that reduction corresponds to?

What is the potential of Ag/AgNO3 electrode with 0.1 M TBAPF6(tetrabutyl ammunium hexaflurophosphate) vs SHE or NHE or Ag/AgCl (Sat. KCl)?

Thanks in Advance

Arvinder