Raman spectroscopy on silver in cyanide electrolytes

Silver deposition is an example of a metal deposition, which can be monitored by Raman spectroscopy. A Raman spectrometer is now usually a Raman microscope using confocal 

There is evidence that the extreme enhancement of the Raman signal on a silver deposit comes from colloidal silver particles. Considering the special situation of a silver nucleus with adsorbed CN ions, other explanations of the Raman results are possible, e.g., an adsorption of CN on clusters of different sizes and charges.  

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