A Phenylamine-Oligothiophene-Based Fluorescent Chemosensor for Selective Detection of Hg(II)

Qingfen Niu; Xingxing Wu; Tianduo Li; Yuezhi Cui; Shanshan Zhang; Qiuchen Su

doi:10.1007/s10895-016-1793-4

A Phenylamine-Oligothiophene-Based Fluorescent Chemosensor for Selective Detection of Hg(II)

J Fluoresc. 2016 May;26(3):1053-8. doi: 10.1007/s10895-016-1793-4. Epub 2016 Apr 7.

Authors

Qingfen Niu¹, Xingxing Wu², Tianduo Li², Yuezhi Cui², Shanshan Zhang², Qiuchen Su²

Affiliations

¹ Shandong Provincial Key Laboratory of Fine Chemicals, Qilu University of Technology, Jinan, 250353, People's Republic of China. qf_niu1216@qlu.edu.cn.
² Shandong Provincial Key Laboratory of Fine Chemicals, Qilu University of Technology, Jinan, 250353, People's Republic of China.

PMID: 27056186
DOI: 10.1007/s10895-016-1793-4

Abstract

A phenylamine-oligothiophene-based fluorescent chemosensor I3TEA was reported. This sensor exhibited highly selective and fast detection of Hg(2+) ion in MeCN/H2O (8/2, v/v) solution through fluorescence quenching. The detection was unaffected by the other competitive metal cations. The low detection limit was found to be 5.92 × 10(-7) M. In addition, the recognition process is reversible and confirmed by EDTA experiment.

Keywords: Fluorescence chemosensor; Mercury ion; Phenylamine-oligothiophene; Quenching.

MeSH terms

Aniline Compounds / chemistry*
Limit of Detection
Mercury / analysis*
Mercury / chemistry
Polymers / chemistry*
Spectrometry, Fluorescence / instrumentation*
Thiophenes / chemistry*

Substances

Aniline Compounds
Polymers
Thiophenes
polythiophene
Mercury