Novel synthesis of sensor for selective detection of Fe+3 ions under various solvents

Naked-eye colored chemo dosimeter based on vanilline based conjugated sensor was synthesized and charac-terized. The main point of this paper is that the solvent also affects on selectivity of metals. Vanilline based conjugate sensor exhibited high selectivity and sensitivity for detection of Ferric ions (Fe+3) in all (both polar and nonpolar) solvents according to absorbance which can be observed by naked eye. The selectivity was more prominent in nonpolar or less polar solvent due to solubility factor of ions and sensor but not for polar. The detection of limit of the synthesized probes was shown up to 0.84 ppm. The dielectric constant of solvents affected on the complex formation of ligand with transition metal ions. A filter paper strip system was used for rapid monitoring of detection by color variation.

Automated summary

A naked-eye colored chemo dosimeter based on a vanilline-based conjugated sensor was synthesized and characterized. The main point of this paper is that the solvent also affects the selectivity of metals. The vanilline-based conjugate sensor exhibited high selectivity and sensitivity for detecting Ferric ions (Fe+3) in all solvents. The selectivity was more prominent in nonpolar or less polar solvents. The detection limit of the synthesized probes was shown to be up to 0.84 ppm. A filter paper strip system was used for rapid monitoring of detection by color variation.