Detection of Counterfeit Tequila by Fluorescence Spectroscopy

Figure 6

Fake tequila fluorescence (FT) compared to ET-DW (40%-60%) and ST fluorescence at different wavelengths. (a) 255 nm, (b) 330 nm, (c) 365 nm, and (d) 405 nm.

(a)

(b)

(c)

(d)