A red-emitting fluorescent probe based on flavone for hydrazine detection and its application in aqueous solution

On account of the biological harmfulness of hydrazine, we have designed and synthesized a novel red-emitting fluorescent probe ( 1 ) based on 3-hydroxyflavone. The probe could selectively and sensitively detect hydrazine over other primary amines, cations and anions. Moreover, we verified the mechanism of probe 1 for detecting hydrazine through a 1 H NMR titration and MS spectral analysis. Importantly, the probe could selectively detect hydrazine in different water samples which showed its potential for practical applications. On account of the biological harmfulness of hydrazine, we have designed and synthesized a novel red-emitting fluorescent probe based on 3-hydroxyflavone.