Figure 3. Derived absorptovoltammogram MB+ on Pt. Black: CV, red: derived absorbance. Scan rate 0.01 V/s

From

Methylene Blue - New Chemistry Experiments for University Education

P. Wagler, J. Scheible, A. Habekost

World Journal of Chemical Education. 2022, 10(4), 137-148 doi:10.12691/wjce-10-4-3