Abstract
A fluorescence probe based on thiosemicarbazide has been synthesized and well characterized by 1H NMR, 13C NMR, Elemental analysis, Electrospray ionization mass spectra. The probe 1 functions as a multitarget ion sensor, detect biologically and ecologically important Cd2+, PO43− and Cr3+. Meanwhile, probe 1 displays selectivity for Cd2+ over other metal ions and anions in DMF by emission spectrum. Interestingly, probe 1 has been explored to recognize PO43− in CH3OH-H2O (v:v = 1:9). The binding stoichiometry of probe 1 with Cd2+ and PO43− are 2:1 and 1:1, respectively, which are confirmed by Electrospray ionization mass spectra. Probe 1 is selective, sensitive and reversibility/reusability to Cd2+ and PO43− with the detection limit as low as 0.035 μM and 0.011 μM respectively. Besides, the designed probe 1 has shown potential applications in the area of photo-printing.
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