Figure 13. Top. Potential dependent absorption of ferri/ferrocyanide at 420 nm. Bottom: Derived Absorptovoltammogram (red line) and cyclic voltammogram (black line). Scan rate 50 mV/s, Pt SPE

From

Combining Optical and Raman Spectroscopy with Electrochemistry: The Ferricyanide and Ferrocyanide System - Experiments for Undergraduates

A. Habekost

World Journal of Chemical Education. 2024, 12(1), 30-38 doi:10.12691/wjce-12-1-5