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. 2011 Nov 8;11(11):10638–10663. doi: 10.3390/s111110638

Figure 2.

Figure 2.

(A) Dependencies of peak height of cadmium(II) ions on their concentrations measured in the presence of acetate buffer pH 4, 5 and 6; (B) Mathematical modelling of cadmium(II) ions behaviour in the presence of 0.2 M acetate buffer, pH 5; (C) Changes in the peak height of cadmium(II) ions measured in the presence of 0, 10, 50, 90 and 100% (v/v) of cultivation medium in supporting electrolyte. Changes in (upper inset) potentials of the peaks and (upper inset) linear slopes with the increasing content of cultivation medium in supporting electrolyte as 0.2 M acetate buffer, pH 5. Differential pulse voltammetric measurements were carried out under the following parameters: deoxygenating with argon 90 s; deposition potential −0.8 V; time of deposition 240 s; start potential −0.8 V; end potential 0.15 V; pulse amplitude 0.025 V; pulse time 0.04 s; step potential 5.035 mV; time of step potential 0.4 s.