Journal
DYES AND PIGMENTS
Volume 116, Issue -, Pages 52-57Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2015.01.013
Keywords
Ratiometric; Thiophenol; Full aqueous; Glycodye; River water; Naphthalimide
Funding
- 973 Project [2013CB733700]
- National Natural Science Foundation of China [21176076, 21202045]
- Key Project of Shanghai Science and Technology Commission [13NM1400900]
- Fundamental Research Funds for the Central Universities
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Although being widely used in organic synthesis, thiophenol (Tp) is toxic to the human body. We report here the preparation of a ratiometric fluorescence probe for the selective, transient determination of Tp in full aqueous solution. The probe was synthesized by a click reaction coupling between an alkynyl naphthalimide-dansyl dyad and an azido galactoside which increases the water solubility. Fluorescence spectroscopic analyses showed that the probe had a specific ratiometric response to Tp transiently in a full aqueous solution, over a range of other species. The probe has also proven suitable for the quantification of Tp in environmental water samples, and possesses superior properties to previous Tp fluorescence probes in terms of water solubility and sensitivity. (C) 2015 Elsevier Ltd. All rights reserved.
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