Figure 4 | Scientific Reports

Figure 4

From: A Fully Integrated and Miniaturized Heavy-metal-detection Sensor Based on Micro-patterned Reduced Graphene Oxide

Figure 4

(a) Stripping voltammograms of Bi/Au and Bi/TRGO/Au in acetate-buffer solution containing 200 μg L−1 of Cd and Pb ions. Effects of the deposition potential for sensing target ions (b), pH value of the test solutions (c), and deposition time for sensing target ions (d) on the stripping-peak current of 200 μg L−1 of Cd and Pb ions. Data are presented with the mean of three replicates.

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