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Fig. 9 | Journal of Analytical Science and Technology

Fig. 9

From: Fabrication of novel polymer-modified graphene-based electrochemical sensor for the determination of mercury and lead ions in water and biological samples

Fig. 9

a Cyclic voltammogram for the simultaneous analysis of HgCl2 and PbCl2 in 0.1 M PBS (pH 4.5) at a scan rate of 0.1 V/s. b Differential pulse voltammogram for the simultaneous analysis of PbCl2 and HgCl2 in 0.1 M PBS (pH 4.5) at a scan rate of 0.05 V/s. c Cyclic voltammograms of different concentrations of HgCl2 (1000 μM–1100 μM) and constant concentration of PbCl2 (1000 μM). d Cyclic voltammograms of different concentrations of PbCl2 (1000–1180 μM) and constant concentration of HgCl2 (1000 μM)

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