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. 2019 Aug 22;11(9):1377. doi: 10.3390/polym11091377

Figure 3.

Figure 3

Fluorescence sensing of BRF towards Fe3+. (a) Fluorescence emission spectra of BRF with the addition of different metal ions; (b) fluorescence emission spectra of BRF quenched by various Fe3+ concentrations (0–0.16 mM); (c) Stern–Volmer plot for fluorescence quenching of BRF after the addition of Fe3+ (0–0.16 mM); (d) the interference of other metal ions on the fluorescence detection of BRF to Fe3+. F0 and F represent the fluorescence intensity of BRF-Fe(Ⅲ) system before and after the addition of other metal ions.