基于香豆素阳离子荧光化学传感器合成及性能研究

• 作 者: 杨永祺 侯瑞斌 李东风
• 机 构: 长春工业大学化学与生命科学学院,
• 出 处: 化工新型材料
• 发表日期: 2017年04期
• 关键词: 荧光化学传感器 香豆素 金属离子 识别

合成以香豆素为母核的荧光化学传感器。通过紫外光谱和荧光光谱对荧光化学传感器的传感性能进行了研究。在乙腈溶液中,荧光化学传感器对铜离子(Cu~(2+))有良好的识别性能力。Cu~(2+)的加入使得传感器的紫外光谱发生蓝移,吸光度减小;荧光光谱发生显著的淬灭,在加入2当量Cu~(2+)之后荧光几乎完全淬灭。测试表明,荧光化学传感器对Cu~(2+)具有良好识别和检测性能。

Synthesis of coumarin-based fluorescent chemical sensor. The sensing performance of fluorescent chemosensors was studied by UV and fluorescence spectroscopy. In acetonitrile solution, the fluorescence chemical sensor has a good recognition ability for copper ions (Cu 2+). The addition of Cu 2+ led to the blue shift of the UV spectrum of the sensor and the decrease of absorbance. The fluorescence spectrum was quenched markedly and the fluorescence was almost completely quenched after adding 2 eq Cu 2+. The test shows that the fluorescent chemical sensor has good recognition and detection performance for Cu 2+.