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  • Avrupa Bilim ve Teknoloji Dergisi
  • Issue:17
  • A Turn OFF Fluorescent Probe For Selective Detection Of Hg2+ Ions

A Turn OFF Fluorescent Probe For Selective Detection Of Hg2+ Ions

Authors : Duygu AYDIN
Pages : 483-490
Doi:10.31590/ejosat.634119
View : 26 | Download : 15
Publication Date : 2019-12-31
Article Type : Research Paper
Abstract :In this study, we prepared a novel fluorescent chemosensor containing an imidazole molecule and the chemosensor characterized utilizing 1H-NMR, 13C-NMR spectroscopy, FT-IR spectrometer and elemental analyzer. Prepared sensor was utilized as an effectively selective and a fastly responsive chemical fluorescent sensor for ‘’turn off’’ determination of mercury (II) ions in EtOH. A clear complex between 2-((4-(1H-phenanthro[9,10-d] imidazol-2-yl)benzylidene)amino) phenol (PENIM) and Hg+ ions was determined and calculated employing the Job’s method and also the limit of detection value was found to be 2.1 nM on the basis of 3σ/k. Furthermore, the sensor-Hg2+ displayed and reversible property for mercapto containing cysteine molecules. Also, the fluorescence enhancement and quenching studies were supported by computational experiments based on the density functional theory (DFT) calculations.
Keywords : Mercury ions, Fluorescence, Sensor

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