Development of multi-analyte responsive sensors: optical discrimination of arsenite and arsenate ions, ratiometric detection of arsenite, and application in food and water samples

Abstract

5-Nitro-2-furaldehyde based Schiff base chemosensors, N4R1–N4R3 with varying strengths of electron-withdrawing groups were developed for the discriminatory sensing of arsenite and arsenate ions in semi-aqueous media.