Abstract：
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.
摘要：
硫化氢（H2S）是一种常见的有毒气体，威胁着环境水和食品的质量和安全。在这里，合成了一种新的近红外荧光探针DTCM，并通过单晶X射线衍射对其进行了表征。它在665nm处表现出显着的“开启”近红外（NIR）发射响应，具有175nm的显着质量斯托克斯位移，超快检测能力（30秒内），优异的光稳定性，高选择性和灵敏度(检测限，LOD=58nM)。此外,该探针已成功用于环境水样中H2S的检测。装载DTCM的试纸能够方便和实时地监测食品腐败产生的H2S。
