Jiangxi Key Laboratory of Organic Chemistry, College of Chemistry and Chemical Engineering, Jiangxi Science and Technology Normal University, Nanchang 330031, PR China.
Jiangxi Key Laboratory of Organic Chemistry, College of Chemistry and Chemical Engineering, Jiangxi Science and Technology Normal University, Nanchang 330031, PR China.
Spectrochim Acta A Mol Biomol Spectrosc. 2024 Aug 5;316:124341. doi: 10.1016/j.saa.2024.124341. Epub 2024 Apr 23.
Hydrogen sulfide (HS) 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 HS. 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 HS in environmental water samples. The DTCM-loaded test papers enabled convenient and real-time monitoring of HS produced by food spoilage.
硫化氢（HS）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。在此，我们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，用于检测 HS。它在 665nm 处表现出显著的“开启”近红外（NIR）发射响应，具有显著的 175nm 大规模斯托克斯位移，超快速检测能力（在 30s 内），出色的光稳定性，高选择性和灵敏度（检测限，LOD=58nM）。此外，该探针还成功用于环境水样中 HS 的检测。负载 DTCM 的试纸可方便、实时地监测食品腐败产生的 HS。
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