Amperometric Determination of Hydrogen Peroxide in Whitening Gels Using Boron-doped Diamond Electrode.

The aim of this work was to develop an electrochemical cell and a methodology based on an amperometric determination of hydrogen peroxide in whitening gel samples under a boron-doped diamond electrode using flow injection analysis. Different parameters were evaluated to obtain the best conditions of analysis: among them, the flow of electrolyte at 2.8 mL min, the loop sampling 175 μL (28.