Maybe consider an alternative to Prussian Blue when measuring H2O2. In a recently accepted paper1 we investigate electrodes based on manganese dioxide for determination of H2O2 and demonstrate this by addition of glucose oxidase to the electrode to make a glucose sensor.
MnO2 is a good catalyst for decomposition of H2O2 at relatively low potential. However, the conditions of electrodeposition strongly affects the efficiency of the catalyst. In this manuscript we made a systematic study of MnO2-based electrodes where the oxide had been electrodeposited using different techniques under different conditions.
The paper was the work of Veronika, who continued the work that she had started already back in Ukraine. We hope to continue the collaboration also after she has left to go back to her hometown.