期刊
NEW JOURNAL OF CHEMISTRY
卷 40, 期 10, 页码 8607-8613出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6nj00181e
关键词
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资金
- National Natural Science Foundation of China [21262032, 21161018, 21574104]
- Program for Chang Jiang Scholars and Innovative Research Team in the University of Ministry of Education of China [IRT1177]
- Natural Science Foundation of Gansu Province [1010RJZA018]
- Youth Foundation of Gansu Province [2011GS04735]
- [NWNU-LKQN-11-32]
A colorimetric and fluorescent cyanide chemosensor L1 bearing a coumarin group has been designed and synthesized. It showed immediate visible color changes from yellow to colorless and blue fluorescence enhancement when CN- was added. The mechanism of the CN- anion recognition process was examined using H-1 NMR titration, FT-IR spectroscopy, ESI-MS and DFT calculations. The sensor was highly sensitive with a detection limit of 7.72 x 10(-8) M of CN-. Test strips based on the sensor L1 were fabricated, which could act as a convenient and efficient CN- test kit to detect CN- for in-the-field'' measurements.
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