A novel spectrofluorimetric method based on a reaction with an azoisoxazoles–benzenesulfonamide derivative for determination of uranium (VI) ions in water samples

Abstract

Selective fluorometric detection and determination of uranium ions is provided here using a novel fluorescent reagent, namely (E)-4-([4-hydroxynaphthalen-1-yl]diazenyl)-N-(5-methyleisoxazol-3-yl) benzenesulfonamide (U VI reagent). The U VI reagent offers a selective fluorescence enhancement behaviour at emission wavelength = 557 nm. The parameters affecting fluorometric detection of uranium ions, such as the pH, solvent type, ligand concentration, interaction time, and interfering ions, were investigated and adjusted. The proposed U VI reagent can detect and determine uranium ions even at low concentrations, for which the obtained limit of detection was 0.1 ppm. Additionally, this proposed determination protocol was successfully used to detect, monitor, and determine uranium ions in actual water samples.

Detection and Selective Removal Strategy of Thorium Ions Using a Novel Fluorescent Ligand and Hybrid Mesoporous γ-Al2O3-like Nanoneedles

“…In the last two decades, creating selective and sensitive fluorescent sensors for radioactive elements has attracted some interest in the radioactive elements sensing sectors. Accordingly, numerous scientists have started focusing on the field of Th­(IV) detection through fluorescence techniques. , Despite the fact that several fluorescent sensors for radioactive metals have been produced, only a small number of sensors have been fabricated to detect Th­(IV) ions in aqueous solutions. Therefore, we strive to highlight the field of extraction, detection, and removal of Th­(IV) ions from aqueous solutions through developing sensitive and selective fluorescent-ligands@adsorbent. , Due to the fluorescent-ligands@adsorbents containing multiple and various electron-donating groups, these groups have the potential to form coordination bonds and many chelating rings with the target ions.…”

“…Accordingly, numerous scientists have started focusing on the field of Th(IV) detection through fluorescence techniques. 19,20 Despite the fact that several fluorescent sensors for radioactive metals have been produced, only a small number of sensors have been fabricated to detect Th(IV) ions in aqueous solutions. Therefore, we strive to highlight the field of extraction, detection, and removal of Th(IV) ions from aqueous solutions through developing sensitive and selective fluorescent-ligands@adsorbent.…”

“…Therefore, we strive to highlight the field of extraction, detection, and removal of Th(IV) ions from aqueous solutions through developing sensitive and selective fluorescent-ligands@adsorbent. 19,21 Due to the fluorescentligands@adsorbents containing multiple and various electrondonating groups, these groups have the potential to form coordination bonds and many chelating rings with the target ions.…”