A salicylal-derived Schiff base as Co (II) selective fluorescent probe

作者：Zhang, Jinling; Liu, Yameng; Fei, Qiang; Shan, Hongyan; Chen, Fei; Liu, Qing; Chai, Guoping; Feng, Guodong; Huan, Yanfu^*

来源：Sensors and Actuators B: Chemical , 2017, 239: 203-210.

DOI：10.1016/j.snb.2016.07.178

• Schiff base
• Cobalt
• Fluorescence
• Probe
• Turn-on

A salicylal-derived Schiff base L was synthesized and exploited as a fluorescence probe for its selective detection of Co2+. L exhibited enhanced fluorescence response at 350 nm for Co2+ in ethanol medium, distinguishing Co2+ from other cations with high selectivity. The formation of a 4:1 complex between L and Co2+ was suggested by Job's Plot. Additionally, the fluorescence intensity was directly proportional to the concentration of Co2+ (R-2 = 0.9910) from 8.0 x 10(-7) to 2.0 x 10(-6) MOl L-1 with a detection limit of 7.82 x 10(-7) mol L-1 (3u) under optimized conditions. The small molecular compound could be used as a promising fluorescent probe for monitoring levels of Co2+ in environmental and physiological systems.

• 出版日期2017-2
• 单位吉林大学