A New Zn(II) Metal‐Organic Framework as an Efficient Fluorescent Probe for Chlortetracycline in Chicken Meat and Egg Samples

The development of new materials for detecting chlortetracycline residues has garnered increasing attention in the realm of food safety. Under solvothermal conditions, a synergistic combination of diverse ligands successfully cooperated to synthesize a highly stable and luminescent zinc metal-organic framework (YMU 1), which crystallizes in the triclinic crystal system Pī with a 4-connected grid-like sql network and demonstrates exceptional stability in various environments, including organic solvents, water, and different pH levels. Functioning as an innovative fluorescence sensor, YMU 1 exhibits selective, sensitive, rapid, and reversible detection abilities for the antibiotic chlorotetracycline (CHL) in aqueous solutions through fluorescence quenching, having an exceptional minimum detection limit of 0.081 µM. Furthermore, serving as an effective fluorescence detection material, YMU 1 displays favorable recovery rates when detecting CHL in chicken meat and egg samples. The suggested rational fluorescence detection mechanism may integrate both fluorescence resonance energy transfer and photon energy transfer.