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. 2016 Sep 12;6:33125. doi: 10.1038/srep33125

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Copyright © 2016, The Author(s)

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(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.