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Nitrogen-doped Graphene Modified Glassy Carbon Electrode for Anodic Stripping Voltammetric Detection of Lead Ion

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Figure

Figure 1B showed the simultaneous DPASV detection of 0.15 μmol/L Pb and CdNG/GCE at the selected conditions
Figure 2. (A) Relationship of pH and Ip value for 1.5×10-5 mol/L Pb2+ in different pH HOAc-NaOAc buffer; (B) Effect of accumulation potential and (C) Effect of accumulation time on the stripping peak currents of 1.5×10-5 mol/L Pb2 + in pH 4.0 HOAc-NaOAc bu
Figure 3. Calibration curve for Pb2+ detection with NG/GCE in pH 4.0 HOAC-NaOAC solution
Table 3. Determination of Pb2+ concentration in fishmeal samples (n=3)

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