Azo linked thiourea based effective dual sensor and its real samples application in aqueous medium

Abstract

The azo linked thiourea type Schiff base has been synthesized and characterized which is found to sense F-, AcO- and Cd2+ ions in aqueous medium over other anions and cations. R1 gave rise to significant changes in the absorption spectrum and 1H NMR spectroscopic studies upon the titration with F-, AcO-. R1 detects anions and metal ions at nanomolar level. F- ion detection property of R1 in aqueous medium was also extended to the real samples like toothpaste and mouthwash.