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A Visible Colorimetric Fluorescent Probe for Hydrogen Sulfide Detection in Wine
- Chen, Haitao, Wu, Xiaoming, Yang, Shaoxiang, Tian, Hongyu, Liu, Yongguo, Sun, Baoguo
- Journal of Analytical Methods in Chemistry (Online) 2019 v.2019
- color, colorimetry, detection limit, fluorescent dyes, hydrogen sulfide, wines
- A new efficient and practical fluorescent probe 6-(benzo[d]thiazol-2-yl)naphthalen-2-yl-thiophene-2-carboxylate (probe 1) was synthesized to detect hydrogen sulfide (H₂S). The addition of H₂S caused the solution of probe 1 to change from colorless to yellow, and the solution of probe 1 changes to different colors with respect to different concentrations of H₂S. Importantly, probe 1 could help detect H₂S efficiently by a distinct color response as a visible detection agent. Probe 1 reacted with various concentrations of H₂S (0–200 μM), and the detection limit for H₂S was 0.10 μM. Particularly, probe 1 can be applied as a sensor to detect H₂S accurately in wine samples.