文献类型：期刊文献

英文题名：A simple fluorescent probe for Cd2+ in aqueous solution with high selectivity and sensitivity

作者：Xu, Lin[1,2]; He, Meng-Lan[2]; Yang, Hai-Bo[2]; Qian, Xuhong[1]

机构：[1] Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China; [2] Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, China

年份：2013

卷号：42

期号：23

起止页码：8218

外文期刊名：Dalton Transactions

收录：EI(收录号：20132216375780)

语种：英文

外文关键词：Binding energy - Solutions - Metals - Probes - Fluorescence

摘要：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 Cd 2+ over many other metal ions (Ba2+, Mn2+, Hg2+, Ni2+, Ca2+, Cu2+, Co 2+, Pb2+, Mg2+, Zn2+, Fe 2+, 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+. ? 2013 The Royal Society of Chemistry.