*3.5. Solubility Isotherms*

Excess amounts of EFV were added to 20 mL of unbuffered aqueous solutions of increasing concentrations of γ-CD. Solutions were stirred for 48 h at room temperature. Aliquots were filtered (0.22 µm), diluted with a 1:1 mixture of water and isopropanol and their absorbance was measured at 293 nm.
