水溶性苝类荧光探针的合成及对Pb^2＋离子的识别  

Synthesis of water-soluble perylene fluorescence probe and its identification to Pb^(2+)

作　　者：马永山[1] 张凤霞 吴俊森[1] 赵英杰[3] 任会学[1] 

机构地区：[1]山东建筑大学市政与环境工程学院,山东济南250101 [2]山东省计量检测重点实验室,山东省计量科学研究院,山东济南250014 [3]中国科学院化学研究所,北京100190

出　　处：《冶金分析》2011年第11期7-11,共5页Metallurgical Analysis

基　　金：水体污染控制与治理科技重大专项资助项目(引黄供水地区水质风险评估技术研究与应用,No.2008ZX07422-001);山东省自然科学基金资助项目(No.Y200B42);山东省质量技术监督局科研项目(饰品中有害物质的关键指标控制,No.2010KYZ13)

摘　　要：以苝四酸酐为原料合成了作为铅荧光探针的一种新型水溶性荧光衍生物N,N'-二谷氨酸铵盐-3,4,9,10-苝四羧酸二酰亚胺(PTCDG),其结构已经1H NMR和IR证实。研究了PTCDG及PTCDG与金属离子(M)络合物(PTCDG/M)的光谱性质和PTCDG对金属离子的识别性能。结果表明,PTCDG在水溶液中能与Pb2+有较强的螯合作用,两者络合比为1∶1,Pb2+可有效淬灭PTCDG的荧光且PTCDG对Pb2+识别作用不受Mn2+、Mg2+、Zn2+、Ni 2+、Ca2+、Co2+、Na+、K+、Ba2+、Hg2+等金属离子干扰。本文还对PTCDG与金属离子作用的荧光变化机理做了探讨。A novel water-soluble fluorescence derivative N,N＇-diammonium glutamate-3,4,9,10-perylenetetracarboxylic diimide（PTCDG） was synthesized from plenetetracarboxylic dianhydride and used as fluorescence probe for lead.Its structure was confirmed by 1H NMR and IR.The spectral properties of PTCDG and PTCDG-metal ion（M） complex（PTCDG/M） as well as the identification ability of PTCDG to metal ions were studied.The results showed that PTCDG had strong chelation with Pb^2＋ in aqueous solution.The complex ratio was 1∶1.Pb^2＋ could effectively quench the fluorescence of PTCDG.Besides,the identification of PTCDG to Pb^2＋ was not interfered by other metal ions such as Mn^2＋,Mg^2＋,Zn^2＋,Ni^2＋,Ca^2＋,Co^2＋,Na^＋,K^＋,Ba^2＋ and Hg^2＋.In addition,the fluorescence change mechanism between PTCDG and metal ions was also discussed.

关 键 词：苝酰亚胺 谷氨酸钠 金属离子 荧光探针 

分 类 号：O657.3[理学—分析化学]