A Sc-3-HF complex as a fluorescent chemosensor for the selective detection of dihydrogen phosphate

作者:Du, Wei; Jia, Chunman*; Zhang, Yinfeng*; Chen, Qing; Wang, Yile; Huang, Yan; Zhang, Qi*
来源:Analytical Methods, 2018, 10(17): 1993-1998.
DOI:10.1039/c8ay00048d

摘要

A method that uses a Sc-3-HF complex as a fluorescent chemosensor for the detection of dihydrogen phosphate ions has been developed. The Sc-3-HF complex exhibits excellent selectivity and sensitivity towards dihydrogen phosphate ions. The binding properties of the Sc-3-HF complex towards various anions are evaluated by fluorescence spectroscopic method. The results demonstrate that the Sc-3-HF complex can effectively distinguish H2PO4- from HSO4-, HPO4 2- and PO4 3-. These results of fluorescence reversibility experiments show that the Sc-3-HF complex can serve as a relay probe to detect dihydrogen phosphate ions with high selectivity and sensitivity in CH3CN-H2O (1 : 4, v/ v) solution.