Figure 2From: Fabrication and evolution of multilayer silver nanofilms for surface-enhanced Raman scattering sensing of arsenate UV-Vis absorption spectra of the AgNPs films prepared in AgNO 3 /BuNH 2 ethanolic solutions at different reaction time. The reactants concentrations: (A) 1/0.5 mM, (B) 5/2.5 mM, and (C) 10/5 mM. The background spectra have been subtracted for all the UV-Vis absorption spectra.Back to article page