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A carbonothioate‐based highly selective fluorescent probe with a large Stokes shift for detection of Hg 2+
Author(s) -
Xu Jing,
Xu Zhenghe,
Wang Zuokai,
Liu Caiyun,
Zhu Baocun,
Wang Xiuru,
Wang Kun,
Wang Jiangting,
Sang Guoqing
Publication year - 2018
Publication title -
luminescence
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 45
eISSN - 1522-7243
pISSN - 1522-7235
DOI - 10.1002/bio.3404
Subject(s) - fluorescence , mercury (programming language) , chemistry , stokes shift , metal ions in aqueous solution , analytical chemistry (journal) , ion , environmental chemistry , optics , physics , computer science , organic chemistry , programming language
Mercury (Hg) is one of the heavy metal pollutants in the environment. Even a very small amount of mercury can cause serious harm to human beings. Herein, we reported a new carbonothioate‐based fluorescent probe for the detection of Hg 2+ without interference from other metal ions. This probe possessed a very large Stokes shift (192 nm), which could improve the detection sensitivity by minimizing the interferences resulted from self‐absorption or auto‐fluorescence. With the addition of Hg 2+ to the probe solution, considerable fluorescence enhancement was observed. Additionally, the Hg 2+ concentration of 0–16 μM and fluorescence intensity showed a good linear relationship (y = 22106× + 53108, R 2 = 0.9955). Finally, the proposed probe was used to detect Hg 2+ in real water samples, and its result was satisfactory. Therefore, our proposed probe would provide a promising method for the determination of Hg 2+ in the environment.