Figure 6.

Time evolution of the degradation of (a) 25 μM AVB, (b) 50 μM OXB, and (c) 25 μM CUR in the absence (black circles) and presence (equimolar, Bordeaux triangles; 4 mM, indigo rhombuses) of β-CD in isochoric acetonitrile solvent under the UVA1 irradiation (365 nm). AVB, OXB, and CUR signals and their calibration lines were determined wavelengths at 360, 290, and 430 nm, respectively. The calibration lines provided r² = 0.999 and 3σ = 0.022. The obtained diagrams of the logarithm of AVB concentration to the reaction time seemed to have downward convex curves rather than first-order linear functions. Figures S4–S6 represented the corresponding observed spectra.