Figure 7.
(a) Fluorescence spectra of P/I− with the addition of Hg2+ (concentrations of P and I− were 1.0 × 10−5 and 1.32 × 10−4 M, respectively) . (b) Calibration curve for the quantification of Hg2+ using P/I− composite (The linear range of the graph was 0.005–14.75 μM).