A Fast-Responsive Fluorescent Sensor for Hg(2+) with High Selectivity and Sensitivity in Aqueous Media

Shanshan Zhang; Qingfen Niu; Xingxing Wu; Tianduo Li; Yuezhi Cui; Xiaoyan Li

doi:10.1007/s10895-015-1670-6

A Fast-Responsive Fluorescent Sensor for Hg(2+) with High Selectivity and Sensitivity in Aqueous Media

J Fluoresc. 2015 Nov;25(6):1543-8. doi: 10.1007/s10895-015-1670-6. Epub 2015 Sep 23.

Authors

Shanshan Zhang¹, Qingfen Niu², Xingxing Wu¹, Tianduo Li¹, Yuezhi Cui¹, Xiaoyan Li³

Affiliations

¹ Shandong Provincial Key Laboratory of Fine Chemicals, Qilu University of Technology, Jinan, 250353, People's Republic of China.
² Shandong Provincial Key Laboratory of Fine Chemicals, Qilu University of Technology, Jinan, 250353, People's Republic of China. qf_niu1216@qlu.edu.cn.
³ School of Chemistry and Chemical Engineering, Shandong University, Shanda Nanlu 27, Jinan, 250100, People's Republic of China.

PMID: 26399540
DOI: 10.1007/s10895-015-1670-6

Abstract

A fast-responsive fluorescent phenylamine-oligothiophene sensor 2TBDA was reported. This sensor exhibited highly selective and sensitive detection of Hg(2+) ion in THF/H2O (7/3, v/v) solution through fluorescence quenching. The detection was not affected by the coexistence of other competitive metal ions. In addition, the detection limit was found to be as low as 3.841 × 10(-7) M.

Keywords: Fluorescence sensor; Mercury ion; Oligothiophene; Quenching.