The literature reveals that this solution should have blue colour as H2O2 oxidizes TMB. I dont know what went wrong why there is no colour? what can be the possible reasons?
Thank you Mr.Chiodo your procedure is quite helpful. Now I will try it this way.
Mr. Bayati I am adding the papers links i followed for the mixture.
Article Green synthesis of reduced graphene oxide-Ag nanoparticles a...
doi:10.1039/C5AN00809C
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