Research Article

TLC-SERS Plates with a Built-In SERS Layer Consisting of Cap-Shaped Noble Metal Nanoparticles Intended for Environmental Monitoring and Food Safety Assurance

Figure 5

Spectra obtained before (a) and after development of a melamine/skim milk mixture from various locations along the length of the TLC-SERS plate, (b), (c), and (d). They correspond to locations 5, 10, and 15 mm from the origin.
(a)
(b)
(c)
(d)