Synthesis, characterization and applications of schiff base chemosensor for determination of Cu2+ ions

• DOI: 10.1016/j.jscs.2022.101503
• Publication Date: 2022-06-07T17:33:58Z
• Authors: Sikandar Khan; Mian Muhammad; Hamed M. Al-Saidi; Athar Abdulfattah...; Walaa Alharbi; Khadijah H. Alharbi
• Keywords: Proton NMR

A novel thiazole-based Schiffbase chemosensor SB1 with N- and O- donor atoms was synthesized characterized by different techniques (UV–vis, 13C NMR, 1H FT-IR analysis). The used for the determination of Cu2+ ions in various samples. significant spectral changes absorption spectra at 220 416 nm color change from light yellow to yellowish-brown indicate high selectivity sensitivity towards as compared other cations (Na+, K+, Ag+, Zn2+, Ni2+, Pb2+, Mn2+, Mg2+, Co2+, Cd2+, Sn2+, Hg2+, Cr3+, Fe3+, Al3+). sensing mechanism investigated through such FT-IR, UV–vis NMR titration experiment further confirmed DFT computational studies. 2:1 binding mode between Job's plot using spectrophotometry. limit detection (LOD) quantification (LOQ) were found be 0.015 0.0471 µg mL−1, respectively. percent recovery environmental samples 95.00–103.33% levels. These obtained results demonstrate that is a cost-effective, facile, selective, sensitive, colorimetric platform detect trace amounts variousenvironmental agricultural