%0 Journal Article
%T Near-infrared fluorescent probe for detection of hydrogen sulfide in water samples and food spoilage.
%A Cai W
%A Xin T
%A Sun L
%A Fan C
%A Liao G
%A Tu Y
%A Liu G
%A Pu S
%J Spectrochim Acta A Mol Biomol Spectrosc
%V 316
%N 0
%D 2024 Aug 5
%M 38676987
%F 4.831
%R 10.1016/j.saa.2024.124341
%X Hydrogen sulfide (H2S) is a common toxic gas that threatens the quality and safety of environmental water and food. Herein, a new near-infrared fluorescent probe DTCM was synthesized and characterized by single crystal X-ray diffraction for sensing H2S. It exhibited a remarkable "turn-on" near-infrared (NIR) emission response at 665 nm with a remarkably massive Stokes shift of 175 nm, super-rapid detection ability (within 30 s), excellent photostability, high selectivity and sensitivity (limit of detection, LOD = 58 nM). Additionally, the probe was successfully utilized for the detection of H2S in environmental water samples. The DTCM-loaded test papers enabled convenient and real-time monitoring of H2S produced by food spoilage.