四川理工学院学报（自然科学版）2018，Vol.31Issue(3)：1-6,6.DOI:10.11863/j.suse.2018.03.01
三嗪-罗丹明荧光探针的合成及水中铜离子检测研究
Synthesis of Fluorescent Probe Based on Triazine-Rhodamine and Its Application in the Determination for Cu2+ in Water Sample
摘要
Abstract
A novel fluorescent probe of triazine-rhodamine derivative TR1 was synthesized and characterized by MS, NMR and IR,which exhibited interesting Cu2+sensing properties.Their spectral changes of the volume ratio of CH3CN/H2O and pH were performed through UV-Vis and fluoresence spectroscopy.The results showed that the addition of Cu2+in CH3CN/H2O (1:1 ,volume ratio)solution of TR1 led to the significant enhancement of absorbance at 553nm and 100-fold increasement of fluorescence intensity at 580nm.It was concluded that TR1 could coordinate with Cu2+in 1:1 stoichiometry with the formation of a large (-conjugated complex,which is stable in the pH of 3. 0 ～7. 5 and 0 ～80% H2O-containing CH3CN solution.A good linear relationship was observed between fluorescence intensity changes and Cu2+concentrations from 4. 0×10-7～5. 0×10-5mol/L with the detection limit of 8. 0×10-8mol/L.The practical applications of TR1 were evalua-ted by measurement of Cu2+in tap and river water samples,which showed satisfactory recovery about 100% and relative standard deviation values RSD≤4. 0%.关键词
罗丹明/荧光探针/铜离子Key words
rhodamine/fluorescent probe/copper ion分类
化学化工引用本文复制引用
吕永军,安荣华,黄超,魏薇..三嗪-罗丹明荧光探针的合成及水中铜离子检测研究[J].四川理工学院学报（自然科学版）,2018,31(3):1-6,6.基金项目
四川省教育厅项目(16ZA0260 （）
16ZA0251) （）
大学生创新基金(201710622014) （201710622014）
四川理工学院人才引进项目(2017RCL20) （2017RCL20）
