Validated Spectrophotometric Methods for Simultaneous Determination of Food Colorants and Sweeteners

Figure 1

Zero-order spectra (a) of 10 μg·mL⁻¹ ASP, 10 μg·mL⁻¹ ACE-K, and their binary mixture, first-derivative spectra (b), and third-derivative spectra (c) of sweeteners (ACE-K: a: 2, b: 4, c: 6, d: 8, e: 10 μgmL⁻¹; ASP: f: 2, g: 4, h: 6, i: 8, j: 10 μgmL⁻¹).

(a)

(b)

(c)