Synthesis of water-soluble perylene fluorescence probe and its identification to Pb2+
MA Yong-shan*1, ZHANG Feng-xia2, WU Jun-sen1, ZHAO Ying-jie3, REN Hui-xue1
1.School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101, China;2.Shandong Provincial Key Laboratory of Metrology and Measurement, Shandong Institute of Metrology, Jinan 250014，China; 3.Institute of Chemistry, Chinese Academy of Sciences， Beijing 100190, China
Abstract：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 Pb2+ in aqueous solution. The complex ratio was 1∶1. Pb Pb2+ could effectively quench the fluorescence of PTCDG. Besides, the identification of PTCDG to Pb2+ was not interfered by other metal ions such as Mn2+, Mg2+, Zn2+, Ni2+, Ca2+, Co2+, Na+, K+, Ba2+ and Hg2+. In addition, the fluorescence change mechanism between PTCDG and metal ions was also discussed.
