A Cu2+-Selective Probe Based on Phenanthro-Imidazole Derivative

作者：Cheng, Dandan; Liu, Xingliang; Yang, Hongzhi; Zhang, Tian; Han, Aixia^*; Zang, Ling^*

来源：Sensors (Switzerland), 2017, 17(1): 35.

DOI：10.3390/s17010035

• copper ion
• fluorescent probe
• phenanthro-imidazole

A novel fluorescent Probe 1, based on phenanthro-imidazole has been developed as an efficient chemosensor for the trace detection of copper ions (Cu2+). Probe 1 demonstrated sensitive fluorescence quenching upon binding with Cu2+ through 1: 1 stoichiometric chelation. The detection limit for Cu2+ ions was projected through linear quenching fitting to be as low as 2.77 x 10(-8) M (or 1.77 ppb). The sensing response was highly selective towards Cu2+ with minimal influence from other common metal ions, facilitating the practical application of Probe 1 in trace detection.

• 出版日期2017-1
• 单位青海大学