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. Author manuscript; available in PMC: 2018 Mar 21.
Published in final edited form as: Anal Chem. 2017 Mar 3;89(6):3345–3352. doi: 10.1021/acs.analchem.6b03894

Fig. 6.

Fig. 6

ASV of fixed concentrations of Pb (0.5 μM and 1 μM) with increasing concentrations of Cd and Zn in acetate buffer (0.1 M, pH 5.5), 100 μL sample. (a) Voltammograms of 1 μM Pb with increasing Cd. (b) Pb peak currents of 0.5 μM and 1 μM Pb in the presence of different concentrations of Cd. (c) Pb peak currents of 0.5 μM and 1 μM Pb in the presence of different concentrations of Zn. (Preconcentration potential −0.8 V and time 300 s, amplitude 50 mV, period 50 ms, increment 8 mV.)