| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1231357 | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2016 | 4 Pages |
•A fast-responsive and fluorescent reversible chemosensor for Hg2 + was reported.•Sensor 2TBEA exhibited high selectivity and sensitivity for Hg2 +.•This sensor can rapidly detect Hg2 + ion in real time.
A phenylamine-oligothiophene-based fluorescent sensor 2TBEA was reported. This sensor exhibited highly selective, sensitive and rapid detection of Hg2 + ion in THF/H2O (7/3, v/v) solution through fluorescence quenching. The detection was unaffected by the coexistence of other competitive metal cations including Na+, K+, Ag+, Ca2 +, Fe3 +, Al3 +, Co2 +, Cu2 +, Ni2 +, Zn2 +, Pb2 +, Cd2 +, Fe2 + and Cr3 +. A1:1 binding ratio for 2TBEA — Hg2 + was demonstrated by Job's plot and mole-ratio curves. The coordination process was chemically reversible with EDTA. The detection limit was evaluated to be as low as 6.164 × 10− 8 M.
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