A Fluorescent Film Probe Based On Schiff Base For Determination of Fe3+ Ions

Abstract

In this paper, fluorescent film probe based on Schiff base was easily prepared and it was used as fluorescence chemosensor for the detection of transition metal ions in aqueous medium. Fluorescence measurements were done using fluorescence spectroscopy and the obtained results showed that the proposed sensor have two emission maxima at 539 and 582 nm. In addition, the proposed film sensor exhibited high sensitivity and selectivity to Fe3+ cation in the mentioned wavelengths. Quantum yield of the fluorescent sensor was also calculated as 3.24%. The limit of detection (LOD) of the chemosensor was calculated using fluorescence titration method and it determined as 53.7 and 3.53 µM at 539 and 582 nm. Fluorescence data indicated that the proposed sensor has potential application to determination of Fe3+ cations in deionized water without interference of the used other metal cations.