Journal
TETRAHEDRON
Volume 73, Issue 32, Pages 4750-4757Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2017.06.051
Keywords
Colorimetric; Copper; Glutathione; Sequential detection; Theoretical calculations
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Funding
- National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology [NRF-2015R1A2A2A09001301]
- Korea Ministry of Environment (MOE)
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A new selective and sensitive colorimetric chemosensor 1 was developed for the sequential detection of Cu2+ and glutathione (GSH) in aqueous solution. The sensor 1 detected Cu2+ ion by an obvious color change from colorless to pale yellow. Importantly, 1 could be used to detect and quantify Cu2+ ion in water samples, and the detection limit (0.14 mu M) of 1 for Cu2+ was much lower than the guideline (31.5 mu M) of WHO in drinking water. Also, Cu2+-2.1 complex can be used as a colorimetric sensor for GSH via naked -eye. The detection limit for GSH was founded to be 2.98 mu M. Moreover, the sensing ability of 1 for Cu2+ was supported by theoretical calculations. (C) 2017 Elsevier Ltd. All rights reserved.
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