一种基于靛玉红的新型“开-关-开”探针，用于顺序检测水样中的铜/硫。
A novel tryptanthrin-based "on-off-on" probe for sequential sensing Cu/S in water samples.
作者信息
Wang Cuiling, Zhou Ying, Liu RongRong, Shang Dongyuan, Jin Kangrui, Wang Jinrui, Liu Jianli, Hou Bao-Long
机构信息
Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Science, Northwest University, Xi'an, 710069, China.
Xi'an Peihua University, Xi'an, 710125, China.
出版信息
Anal Sci. 2024 Jul;40(7):1279-1287. doi: 10.1007/s44211-024-00559-x. Epub 2024 Apr 4.
Copper ions (Cu) and sulfide (S) play essential roles in many physiologies and pathologic processes. Herein, a new "on-off-on" tryptanthrin-based probe TR-1 (TR-1) has been designed and synthesized in a facile and economical way. TR-1 exhibited highly selective and sensitive response to Cu without any interference over 14 competitive metal ions and the detection limit downs to 24 nM, which is far below the Chinese standard of fishery water quality (157 nM). The 'in situ' prepared complex TR-1 + Cu could also be applied to detect S with the detection limit of 62 nM. Further, TR-1 was potentially applied for the analysis of copper ions in water samples.
铜离子（Cu）和硫化物（S）在许多生理和病理过程中发挥着重要作用。在此，一种新型的基于色胺酮的“开-关-开”探针TR-1已通过简便且经济的方法设计合成。TR-1对Cu表现出高度选择性和灵敏的响应，对14种竞争性金属离子无任何干扰，检测限低至24 nM，远低于中国渔业水质标准（157 nM）。原位制备的复合物TR-1 + Cu也可用于检测S，检测限为62 nM。此外，TR-1有潜力用于水样中铜离子的分析。
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