中文摘要：

以1,4-二（3’-羟基-4’-甲酰基苯氧基）丁烷和异丙醇胺为原料,合成了一种双席夫碱荧光探针（H2L）,该化合物在DMF/H2O（19/1,V/V）介质中,427 nm波长处对Zn2＋具有较好的荧光增强识别作用。光谱滴定结果表明,化合物H2L与Zn2＋的配位比为1∶1,对Zn2＋的最低检出限为2.7×10-7mol·L-1,配合物的结合常数为5.11×104L·mol-1。根据核磁滴定实验及质谱分析,提出了荧光探针的传感机理。另外,实际应用研究表明,该探针可应用于实际水体中一定浓度范围内Zn2＋的测定,具有一定的应用价值。

英文摘要：

A di-Schiff base fluorescent probe（ H2L） derived from 1,4-di（3, -hydroxyl-4-fromyl phenoxy） butane and isopropano- lamine was synthesized. The compound displayed excellent fluorescence enhancement effect towards Zn2＋ at emission wavelength of 427 nm in the DMF/H20（ 19/1, V/V） solution. The spectroscopic titration indicated that the stoichiometry of the Zn complex was 1 ： 1 ,the minimum detection limits for Zn2＋ was 2. 7×10 7 mol· L -1 and the binding constant of H2L to Zn2＋ was estimated as 5. 11 ×104 L · mol-1 The sensing mechanism of H2L to Zn2＋ was also proposed based on !H NMR titration experiments and LC-MS anal-ysis. Furthermore, the applied research revealed that the probe can be used for the detection of Zn2＋ ions in real water samples.