Fig. 2. (a) Fluorescence emission spectra recorded in a 6 × 10−5 M quercetin aqueous solution containing different CTAB concentrations, within the 0 to 2.45 M range, using an excitation wavelength of 350 nm at (28.0 ± 0.1) °C and the pH 7 ± 0.2. (b) Plot [I/I0 − 1]−1vs. l/[CTAB]-CMC obtained from the fluorescence intensity, I, in (a) and CMC in Table 1.
