Figure 6. Comparison of SERS spectra of K4[Fe(CN)6] high the frequency region on different, partly commercial, surfaces

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