Perimidine-based synthetic receptors for determination of copper(II) in water solution |
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| Authors: | Milan Jakubek Zdeněk Kejík Robert Kaplánek Hana Veselá David Sýkora Pavel Martásek |
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| Institution: | 1. First Faculty of Medicine, Charles University , Prague, Czech Republic;2. Faculty of Chemical Engineering, Department of Analytical Chemistry, University of Chemistry and Technology , Prague, Czech Republic;3. First Faculty of Medicine, Charles University , Prague, Czech Republic;4. Faculty of Chemical Engineering, Department of Analytical Chemistry, University of Chemistry and Technology , Prague, Czech Republic |
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| Abstract: | Perimidine-based chelators 1 and 2 were prepared, and their structures were confirmed by 1H and 13C NMR, MS spectroscopy and elemental analysis. These compounds were studied as specific synthetic receptors for the recognition of transition metal ions. They exhibited high affinity and selectivity towards Cu(II) ions. The conditional binding constants, linear dynamic range and detection limit were determined by UV–vis spectroscopy. These parameters demonstrated high potential of the prepared synthetic receptors for the recognition and determination of Cu(II) ions. The minimum detectable concentrations of Cu(II) ions for the synthetic receptors 1 and 2 were 270 and 75 nM (R 2 = 0.9915 and 0.9964) in aqueous medium (water/DMSO; 99:1 (v/v)), respectively. |
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| Keywords: | Copper(II) sensing perimidine derivatives synthetic receptor detection limit recognition |
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