Fig. 1. Plot of ultraviolet absorbance versus TDBAC concentration in the presence of different AEO-9 concentrations

Fig. 2. UV spectra of TDBAC, TDBAC/β-CD, AEO-9 and AEO-9/β-CD in aqueous solution

Fig. 3. Job’s plot for inclusion of TDBAC/β-CD

Fig. 4. Interference of AEO-9 on UV spectrum of TDBAC reduced by β-CD

Fig. 5. Quantitative standard curve of TDBAC in β-CD aqueous solution

Fig. 6. Infrared spectra of β-CD and TDBAC/β-CD

Fig. 7. DSC profiles of β-CD, TDBAC and TDBAC/β-CD

Fig. 8. TG profiles of β-CD, TDBAC and TDBAC/β-CD

Fig. 9. Possible mechanism of interaction between TDBAC and β-CD in TDBAC/AEO-9 aqueous solution