“…Enrofloxacin (Enro), also known as ethyl ciprofloxacin, a third-generation fluoroquinolone antibiotic, is widely used as a feed additive for livestock and in aquaculture, owing to its broad antibacterial spectrum and strong bactericidal activity. 1–4 However, studies have found that long-term human consumption of foods containing low doses of Enro can cause intestinal flora imbalances, allergic reactions, drug resistance, and potential carcinogenesis, so its residue problems have aroused wide concern. 4,5 Therefore, establishing a detection method for Enro residues in foods is a significant technical guarantee for maintaining food safety.…”