A new turn on coumarin-based fluorescence probe for Ga3+ detection in aqueous solution

作者：Yan, Liqiang; Zhou, Yan; Du, Wenqi; Kong, Zhineng; Qi, Zhengjian^*

来源：Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , 2016, 155: 116-124.

DOI：10.1016/j.saa.2015.11.012

• Coumarin derivative
• Fluorescent chemosensor
• L-Threonine
• Ga3+

The probe CT was synthesized and investigated as a novel label-free chemosensor for Ga3+ detection in water. Probe CT showed remarkable selectivity and sensitivity for Ga3+ in Tris-HCl aqueous buffer solution (pH 7.0). The chemosensor responded rapidly to Ga3+ with a 1:1 stoichiometry. Meanwhile, the unapparent changes of fluorescence lifetime decays suggest the turn-on process of probe CT by Ga3+ which appears to be a static mechanism.

• 出版日期2016-2-15
• 单位东南大学