A Visible Colorimetric Fluorescent Probe for Hydrogen Sulfide Detection in Wine

Figure 2

(a) Fluorescent intensity of probe 1 (10 μM) in the absence and presence of H₂S (200 μM) in different pH buffer solutions with DMSO (v/v, 3 : 1). The test was repeated 3 times; (b) fluorescence spectra of probe 1 (10 μM) and probe 1 (10 μM) with H₂S (200 μM) in buffer solution (pH 4.0) with DMSO (v/v, 3 : 1) at 37°C; (c) the color change of probe 1 (10 μM) in the absence and presence of H₂S (200 μM).

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(b)

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