一种新型Cu2+离子荧光探针的合成及性能研究

以4-(二乙氨基)水杨醛为原料,经7-二氨基-3-羧酸香豆素合成了一种新型酰胺类Cu2+荧光探针1。本实验具有合成原料经济易得,合成方法简单易行的特点。并且该探针对Cu2+的检测具有良好的离子选择性,抗干扰性能和较高的检测灵敏度,探针1的浓度为10-5 mol/L时检测限达到2.4×10-7mol/L。同时该探针可以与Cu2+离子1：2的摩尔比络合。     

高灵敏，高选择和可视化识别Hg2+的罗丹明turn-on型化学传感器

Two novel rhodamine-based fluorescence enhanced molecular probes (RA₁ and RA₂) were synthesized, which were both designed as comparative fluoroionophore and chromophore for the optical detection of Hg²⁺. The recognizing behaviors were investigated both experimentally and computationally. They exhibited high selectivity and sensitivity for Hg²⁺ 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 Hg²⁺ with sensors. The detection limit was measured to be at least 0.14 μmol/L. After addition of Hg²⁺, the color changed from colourless to pink, which was easily detected by the naked eye in both solution and hydrogel sensor.     

一种新型Cu(Ⅱ)离子荧光探针的合成及性能研究

以4-N,N-二乙氨基水杨醛为原料,经7-N,N-二乙氨基香豆素-3-甲酸合成了一种新型酰胺类Cu2+荧光探针1。该法具有原料经济易得、合成简单易行的特点。该探针对Cu2+的检测具有良好的离子选择性、抗干扰性能和较高的检测灵敏度,当探针1的浓度为10-5mol/L时,Cu2+的检测限达到2.4×10-7mol/L。该探针与Cu2+以1∶2的摩尔比络合。