期刊
TETRAHEDRON LETTERS
卷 58, 期 5, 页码 474-477出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2016.12.066
关键词
Cu2+ ion; 3-Hydroxynaphthalimide; Diaminomaleonitrile; Colorimetry; Liquid-liquid extraction; Smartphone
资金
- Korea Research Foundation of the Korean Government [NRF-2015R1D1A1A01061470]
A new Cu2+-selective colorimetric sensor was developed by combining the chromophore 3-hydroxynaphthalimide with diaminomaleonitrile. The sensor showed Cu2+-selective colorimetric signaling behavior in dimethylsulfoxide, indicated by a solution color change from yellow to pink, which was readily discernible without any external devices. Practical application of the sensor to the detection of Cu2+ in an aqueous solution containing other environmentally relevant metal ions by selective two-phase liquid-liquid extraction with ethyl acetate was possible. Particularly, extractive signaling of Cu2+ in simulated semiconductor wastewater with a readily-usable smartphone as a colorimetric data capture and analysis tool was successfully conducted. (C) 2016 Elsevier Ltd. All rights reserved.
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