Novel Carbonothioate-Based Colorimetric and Fluorescent Probe for Selective Detection of Mercury Ions

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• 作者：Wei Shu ; Yawei Wang ; Liu Wu ; Zuokai Wang ; Qingxia Duan ; Yibo Gao ; Caiyun Liu ; Baocun Zhu ; Liangguo Yan
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2016
• 出版时间：August 17, 2016
• 年：2016
• 卷：55
• 期：32
• 页码：8713-8718
• 全文大小：387K
• 年卷期：0
• ISSN：1520-5045

文摘

The development of probes for selective detection of mercury ions (Hg²⁺) is an important mission to accomplish because of the toxicity and ubiquity of Hg²⁺. Herein, we designed and synthesized a novel fluorescent probe O-(N-butyl-1,8-naphthalimide)-4-yl-O-phenyl carbonothioate (CBONT) for selective and sensitive detection of Hg²⁺ by turn-on fluorescence spectroscopy. Probe CBONT exhibited a fast response for Hg²⁺ with excellent sensitivity (limit of detection = 1.9 nM, 3σ/slope), and it might be attributed to the adoption of a new recognition receptor of carbonothioate moiety. Additionally, probe CBONT could serve as a “naked-eye” indicator for Hg²⁺. Finally, probe CBONT could be successfully applied to detect the concentrations of Hg²⁺ in real water samples. Our proposed recognition receptor would open up new, exciting opportunities for designing highly selective and ultrasensitive fluorescent probes for the determination of Hg²⁺ in real water samples.