基于罗丹明衍生物的Fe(Ⅲ)荧光探针的合成及其性能研究  

Synthesis and Properties of Rhodamine Derivative for Recognition of Fe(Ⅲ)

作　　者：成春文 王风贺[2,3] 段伦超[2,3] 雷武[1] 夏明珠[1] 王风云[1] 

机构地区：[1]南京理工大学工业化学研究所,江苏南京210094 [2]南京师范大学环境科学与工程系,江苏南京210023 [3]江苏省物质循环与污染控制重点实验室,江苏南京210023

出　　处：《化学试剂》2015年第3期255-258,共4页Chemical Reagents

基　　金：国家自然科学基金资助项目(41101287;4147-3071);江苏省科技支撑计划项目(BE2012758);江苏省太湖水环境治理科研项目(TH20130208)

摘　　要：设计并合成了两种罗丹明类Fe3＋荧光分子探针L1、L2,并用核磁和质谱对其结构进行了表征,同时对目标探针进行了荧光光谱性能测试。研究表明：当体系为V（DMF）∶V（H2O）=1∶1时,这两种探针对Fe3＋均具有较好的选择性,且基本不受其他离子的干扰;当Fe3＋浓度在60~120μmol/L和40~300μmol/L范围内时,L1和L2荧光强度均与之呈现良好的线性关系;通过Job＇s曲线发现探针与Fe3＋的配合比为1∶2。Two fluorescent probes L1,L2 based onrhodamine for detecting Fe3 ＋were synthesized and the structures were confirmed by1 HNMR and MS. Meanwhile,the fluorescent properties of probes were also investigated in DMF / H2O（ 1 /1,V / V）. The result showed that L1,L2 were highly selective recognition of Fe3 ＋and other metal ions basically didn＇t interfere with the probes＇ recognition. When the concentration of Fe3 ＋in the range of 60 ~ 120 μmol / L and 40 ~ 300 μmol / L,there was a good linearity between the fluorescence intensity of probes and the concentration of Fe3 ＋,respectively. The method of Job＇s plot indicated a 1∶ 2stoichiometry of probes to Fe3 ＋in the complex.

关 键 词：罗丹明B 荧光探针 FE3+ 合成 

分 类 号：O657.3[理学—分析化学]