Figure 2From: Facile synthesis of flower like copper oxide and their application to hydrogen peroxide and nitrite sensingCyclic voltammograms (CVs) recorded in an oxygen-free 0.1 M PBS (pH 7.0) at the scan rate of 0.05 V/s, using various modified electrodes: (a) bare GCE and (b) CuO/GCE.Back to article page