The Spectrophotometric Multicomponent Analysis of a Ternary Mixture of Paracetamol, Aspirin, and Caffeine by the Double Divisor-Ratio Spectra Derivative Method

Figure 1

Absorption spectra of aspirin, 50 μmol L⁻¹ (a); caffeine, 20 μmol L⁻¹ (b), paracetamol, 20 μmol L⁻¹ (c) at B-R buffer pH 11.0.