▎ 摘　　要

NOVELTY - Preparing histidine-triggered organic hydrogel fluorescent probe involves using histidine as a fluorescence trigger, zirconium ion as a precursor and gel inducer, and N,N-dimethyl methylformamide and water as a mixed solvent to obtain product. USE - Method for preparing histidine-triggered organic hydrogel fluorescent probe used for stable, selective, and highly sensitive detection and capture of residual vitamins, amino acids and antibiotics in water, where the detection result is very good for rutin (RUT) , carotene (CAR), vancomycin (VHE), nitrofurantoin (FAN) performance specificity (claimed). ADVANTAGE - The method has good fluorescence change efficiency, excellent detection limit and practicality.