Schiff Base Compounds as Fluorescent Probes for the Highly Sensitive and Selective Detection of Al³⁺ Ions.

ABSTRACT: Two new Schiff base fluorescent probes (L and S) were designed for selectively detecting Al³⁺ ions in aqueous medium. Structural characterization of the purely synthesized compounds was acquired by IR, ¹H NMR and ¹³C NMR. Moreover, their photochromic and fluorescent behaviors have been investigated systematically by UV-Vis absorption and fluorescence spectra. The two probes have both high selectivity and sensitivity toward Al³⁺ ions in aqueous medium. The 2:1 stoichiometry between the Al³⁺ and probes was verified by Job's plot. Moreover, the limits of detection (LOD) for Al³⁺ by L and S were 1.98 × 10^-8 and 4.79 × 10^-8 mol/L, respectively, which was much lower than most previously reported probes. The p

SUBMITTER: Pang Y 

PROVIDER: S-EPMC10096070 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature