title: A Cu2+-Selective Probe Based on Phenanthro-Imidazole Derivative.
abstract: A novel fluorescent Probe1, based on phenanthro-imidazole has been developed as an efficient chemosensor for the trace detection of copper ions (Cu2+). Probe1demonstrated 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 × 10-8M (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 Probe1in trace detection.
authors.affiliation: Chemical Engineering College, Qinghai University, Xining 810016, China. hanax@qhu.edu.cn.
authors.forename: Dandan
authors.initials: D
authors.lastname: Cheng
authors.affiliation: Chemical Engineering College, Qinghai University, Xining 810016, China. liuxingliang@qhu.edu.cn.
authors.forename: Xingliang
authors.initials: X
authors.lastname: Liu
authors.affiliation: Chemical Engineering College, Qinghai University, Xining 810016, China. yhz2011yj@163.com.
authors.forename: Hongzhi
authors.initials: H
authors.lastname: Yang
authors.affiliation: Qinghai Heavy Industry Vocational School, Xining 810101, China. 15897128508@163.com.
authors.forename: Tian
authors.initials: T
authors.lastname: Zhang
authors.affiliation: Chemical Engineering College, Qinghai University, Xining 810016, China. hanaixia@tsinghua.org.cn.
authors.forename: Aixia
authors.initials: A
authors.lastname: Han
authors.affiliation: Department of Materials Science and Engineering, University of Utah, Salt Lake City, UT 84112, USA. lzang@eng.utah.edu.
authors.forename: Ling
authors.initials: L
authors.lastname: Zang
keywords: copper ion; fluorescent probe; phenanthro-imidazole