Fig. 3.
The fluorescence emission spectra of SSP4 (5 μM) with varied concentrations of Na2S2 (0, 0.5, 1, 1.5, 2, 3, 5, 10, 15, 25, 30, 50 μM) for curves 1–16, respectively. Results are expressed as mean ± SEM (n = 3).
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