Establishment of Fluorescence Sensitization Method for Hydroxysafflor Yellow A

Figure 5

(a) The fluorescence spectra of HSYA in the presence of CTAB, β-CD, SDS, and Na₂B₄O₇. All spectra were measured in PBS ( = 10 mM, pH = 7) solution at room temperature, with excitation at 450 nm. (b) Changes in the maximum intensity of the fluorescence spectra shown in (a) at 550 nm. (c) Color images and (d) fluorescence images of the HSYA solution after the addition of surfactant and borax.

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