Highly Selective Fluorescent Probe for the Sensitive Detection of Inorganic and Organic Mercury Species Assisted by H2O2

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• 作者：Wei Shu ; Liangguo Yan ; Jin Liu ; Zuokai Wang ; Shan Zhang ; Chengcheng Tang ; Caiyun Liu ; Baocun Zhu ; Bin Du
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2015
• 出版时间：August 26, 2015
• 年：2015
• 卷：54
• 期：33
• 页码：8056-8062
• 全文大小：425K
• ISSN：1520-5045

文摘

Mercury (Hg) and its derivatives pose a serious threat to the environment and human health because of their durability, easy transference, and high biological accumulation. Thus, the development of methods for selective and sensitive determination of Hg²⁺ is very important to understand its distribution and implement more detailed toxicological studies. Herein, we report a simple 4-hydroxynaphthalimide-derived fluorescent probe (1) for the detection of both inorganic and organic mercury species in aqueous solution. Probe 1 could quantificationally detect mercury species by fluorescence spectroscopy with high selectivity and sensitivity. Importantly, probe 1 could serve as a 鈥渘aked-eye鈥?indicator for mercury species and exhibited a large fluorescent enhancement with the help of hydrogen peroxide (H₂O₂). Additionally, the mechanism of the reaction between probe 1 and mercury species was confirmed using ¹H NMR and ESI-MS. And, analytical applications of probe 1 to the river water samples further demonstrated that it provided an excellent method for the determination of mercury species in the environment.