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Highly selective, sensitive and fast-responsive fluorescent sensor for Hg2 +.
- Source :
-
Spectrochimica Acta Part A: Molecular & Biomolecular Spectroscopy . Jun2016, Vol. 163, p45-48. 4p. - Publication Year :
- 2016
-
Abstract
- A phenylamine-oligothiophene-based fluorescent sensor 2TBEA was reported. This sensor exhibited highly selective, sensitive and rapid detection of Hg 2 + ion in THF/H 2 O (7/3, v/v) solution through fluorescence quenching. The detection was unaffected by the coexistence of other competitive metal cations including Na + , K + , Ag + , Ca 2 + , Fe 3 + , Al 3 + , Co 2 + , Cu 2 + , Ni 2 + , Zn 2 + , Pb 2 + , Cd 2 + , Fe 2 + and Cr 3 + . A1:1 binding ratio for 2TBEA — Hg 2 + 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. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13861425
- Volume :
- 163
- Database :
- Academic Search Index
- Journal :
- Spectrochimica Acta Part A: Molecular & Biomolecular Spectroscopy
- Publication Type :
- Academic Journal
- Accession number :
- 114629379
- Full Text :
- https://doi.org/10.1016/j.saa.2016.03.029