Figure 3From: Synthesis and Electrochemical Sensing Toward Heavy Metals of Bunch-like Bismuth NanostructuresSquare-wave anodic stripping voltammograms recorded with the bunch-like bismuth electrode a blank 0.1 mol/l acetate buffer pH 4.4b 40 μg/l of Pb2+, Cd2+, Cu2+, Hg2+Back to article page