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. 2016 Jul 19;7(1):27–33. doi: 10.1016/j.jpha.2016.07.005

Fig. 4.

Fig. 4

(A) The relationship between cathodic peak potential and pH value in 0.1 M B-R buffer in the pH range of 2–4 at scan rate of 0.1 V/s. (B) The effect of kind of buffer on the reduction peak current of 2.0 µg/mL doxorubicin in the presence of 0.1 M of different buffers at pH 4.0. (C) The effect of drop casting volume of MWCNTs on the reduction peak current of doxorubicin in B-R buffer (pH 4.0) at scan rate of 0.1 V/s. (D) Effect of accumulation time on the cyclic voltammogram cathodic peak currents of 2.0 µg/mL doxorubicin in B-R buffer (pH 4.0) solution at scan rate of 0.1 V/s.