Naked-eye Detection of Hg2+ in Practical Applications Using a Highly Selective and Sensitive Fluorescent Probe

A highly selective and sensitive probe, DAC-Hg, has been designed and synthesized for the naked-eye detection of Hg2+ in practical applications. DAC-Hg showed applicative “turn-off” sensing for Hg2+ over other ions. The detection limit was determined to be 5.0 nM, the same as the strictest standard...

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Published inAnalytical Sciences Vol. 34; no. 12; pp. 1411 - 1417
Main Authors YANG, Yushun, ZHENG, Dajun, XU, Yunjie, LIU, Qixing, XU, Chen, JIAO, Qingcai, ZHU, Hailiang
Format Journal Article
LanguageEnglish
Published Singapore The Japan Society for Analytical Chemistry 10.12.2018
Springer Nature Singapore
Japan Science and Technology Agency
Subjects
Analytical Chemistry
Chemistry
Fluorescent indicators
Fluorescent probe
Hg2
high sensitivity
Mercury
Mercury (metal)
Metal ions
naked-eye detection
practical application
Seafood
Transition metals
practical application
high sensitivity
naked-eye detection
Fluorescent probe
Hg
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Summary:A highly selective and sensitive probe, DAC-Hg, has been designed and synthesized for the naked-eye detection of Hg2+ in practical applications. DAC-Hg showed applicative “turn-off” sensing for Hg2+ over other ions. The detection limit was determined to be 5.0 nM, the same as the strictest standard of Hg2+ measurements. A naked-eye evaluation with test strips demonstrated the potential of DAC-Hg for conveniently handled in-situ detection. The application of this established method for analyzing environmental and seafood samples supplied satisfactory results. Therefore, DAC-Hg offered a promising approach for Hg2+ detection as well as hints for sensing other heavy and transition metal ions.
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ISSN:0910-6340
1348-2246
DOI:10.2116/analsci.18P274