期刊
DALTON TRANSACTIONS
卷 42, 期 23, 页码 8218-8222出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3dt50216c
关键词
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资金
- National Basic Research Program of China (973 Program) [2010CB126100]
- National Natural Science Foundation of China [21236002]
A simple quinoline-based fluorescent probe, PBQ, which contained a tweezer-like receptor, was successfully developed via one-step synthesis. PBQ exhibited a 40-fold fluorescence enhancement response to Cd2+ in aqueous solution. PBQ was found to have excellent selectivity for Cd2+ over many other metal ions (Ba2+, Mn2+, Hg2+, Ni2+, Ca2+, Cu2+, Co2+, Pb2+, Mg2+, Zn2+, Fe2+, Fe3+, Cr3+, Ag+, Li+, Na+, K+). Significantly, its fluorescence intensity was enhanced in a linear fashion with the concentration of Cd2+. Thus PBQ can be potentially used for the quantification of Cd2+. Moreover, a series of model compounds were rationally designed and synthesized in order to explore the binding mode of PBQ with Cd2+.
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