Two Rhodamine-based Turn on Chemosensors with High Sensitivity, Selectivity, and Naked-Eye Detection for Hg^2＋  

高灵敏，高选择和可视化识别Hg^2＋的罗丹明turn-on型化学传感器

作　　者：周妍[1] 闫力强 孔志能 杜文琦[1] 吴宝赢 祁争健[1] 

机构地区：[1]东南大学化学化工学院,南京211189

出　　处：《Chinese Journal of Chemical Physics》2017年第2期225-230,I0002,共7页化学物理学报（英文）

摘　　要：Two novel rhodamine-based fluorescence enhanced molecular probes （RA1 and RA2） were synthesized, which were both designed as comparative fiuoroionophore and chromophore for the optical detection of Hg^2＋. The recognizing behaviors were investigated both experimentally and computationally. They exhibited high selectivity and sensitivity for Hg^2＋ over other commonly coexistent metal ions in CH3CN/H2O （1：1, V/V） solution. Test shows that hydroxy benzene of rich electron was beneficial to the chelate of Hg^2＋ with sensors. The detection limit was measured to be at least 0.14 p.mol/L. After addition of Hg^2＋, the color changed from colourless to pink, which was easily and hydrogel sensor. detected by the naked eye in both solution

关 键 词：Fluorescent sensor RHODAMINE Mercury 

分 类 号：O[理学]