Determination of Caffeine, Theobromine, and Theophylline by HPLC-DAD in Beverages Commonly Consumed in Lima, Peru

Figure 2

Chromatograms of some samples by HPLC-DAD: (a) HT-3, (b) SOD-5, (c) CP-1, (d) ED-2, (e) SD-4, and (f) CM-5.

(a)

(b)

(c)

(d)

(e)

(f)