Abstract
A phenol-pyridylimine probe was utilized as an optical sensor to quantify the presence of aluminum ions using a turn-on fluorescence enhancement approach. The high sensitivity was the result of FRET amplification of the receptor subunit fluorescence emission. The complex stability constant (Ks) for the stoichiometric 1:1 complex of the sensor with aluminum ions was obtained by fluorimetric titration. Remarkably, fluorescence output was not significantly affected by other trivalent cations, particularly Ga3+ and In3+.
Original language | English |
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Pages (from-to) | 590-594 |
Number of pages | 5 |
Journal | Dyes and Pigments |
Volume | 96 |
Issue number | 2 |
DOIs | |
State | Published - Feb 2013 |
Keywords
- Aluminum ion sensing
- Fluorescent chemosensor
- Phenol
- Pyridyl
- Selective binding
- Turn-on detection