Detection of Triphenylmethane Drugs in Fish Muscle by Surface-Enhanced Raman Spectroscopy Coupled with Au-Ag Core-Shell Nanoparticles

Figure 3

TEM images of (a) Au nanoparticles and (b) Au-Ag core-shell nanoparticles (0.9 mL AgNO₃ used) and (c) HRTEM image of Au-Ag core-shell nanoparticles (0.9 mL AgNO₃ used).

(a)

(b)

(c)