Figure 3From: Tin Oxide Nanorod Array-Based Electrochemical Hydrogen Peroxide Biosensor a CVs of HRP/SnO2 nanorod array electrode in N2-saturated PBS solution containing 0, 0.8 and 4 μM H2O2, respectively. b Effect of HRP dosage on the reduction current responses of the developed enzymatic electrode. Scan rate: 500 mV s−1 Back to article page