Journal
TETRAHEDRON LETTERS
Volume 57, Issue 38, Pages 4297-4301Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2016.08.031
Keywords
Fluorescent chemosensor; Schiff base; Turn-on; Reversibility; Hg2+
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Funding
- National Natural Science Foundation of China [21376125]
- Program for Scientific Research Innovation Team in Colleges and Universities of Shandong Province
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A simple and effective Schiff-base fluorescent chemosensor L was synthesized, which showed highly selective and sensitive detection of Hg2+ ions in CH3CN/H2O (9:1, v/v) solution over a wide pH range. Sensor L exhibited a specific 'turn-on' fluorescent response to Hg2+ with a low detection limit of 2.268 x 10(-8) M. The complex solution of L with Hg2+ ion exhibited reversibility with EDTA and regenerated free ligand for further Hg2+ sensing. The results implied that sensor L could effectively act as Hg2+ sensor in aqueous CH3CN media. (C) 2016 Elsevier Ltd. All rights reserved.
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