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. 2019 Sep 10;9:13075. doi: 10.1038/s41598-019-48999-0

Figure 6.

Figure 6

Cyclic voltammograms obtained at Bare SPCE, f-MWCNTs, and Mo NPs@f-MWCNTs nanocomposite films modified SPCE in PB (pH 7.0) containing 100 µM DA; scan rate of 50 mV s−1 (A). CVs obtained Mo NPs@f-MWCNTs modified electrode containing different concentrations of DA (50–300 µM) in PB (pH 7.0) at a scan rate of 50 mV s−1, Insert; Calibration plot of Ipa vs. conc. [DA]/µM (B). CV response for different scan rates from 20–240 mV s−1 using Mo NPs@f-MWCNTs modified electrode containing 100 μM DA in N2 saturated 0.1 M PB (C). Linear plot for scan rate (V) vs. Ipa of DA (D). Cyclic voltammograms obtained at Mo NPs@f-MWCNTs in supporting electrolyte of different pH contains 100 µM DA (E). The plot between Epa (V) vs. pH and Ipa (µA) vs. pH (F).