A Visible Colorimetric Fluorescent Probe for Hydrogen Sulfide Detection in Wine

Abstract

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 (H 2 S). The addition of H 2 S 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 H 2 S. Importantly, probe 1 could help detect H 2 S efficiently by a distinct color response as a visible detection agent. Probe 1 reacted with various concentrations of H 2 S (0-200 μM), and the detection limit for H 2 S was 0.10 μM. Particularly, probe 1 can be applied as a sensor to detect H 2 S accurately in wine samples.