The method advantage is based on the QuEChERS method principle, using acetonitrile extraction, and then taking out 1 mL of extract to purify and analyze the machine. Compared with the national standard method "GB/T 21312-2007 14 kinds of quinolone drug residues detection method in animal-derived foods by liquid chromatography-mass spectrometry", the method has: 1. The pretreatment process is simple and convenient, and can simultaneously detect the horse wave Sand star, enrofloxacin, sarafloxacin, lomefloxacin, difloxacin, nalidixic acid, fluoromethine; 2. save time and reduce matrix effect; 3. recovery rate of more than 85%, to ensure experimental results Accuracy and reproducibility; 4. The detection limit of the method is 1.0 μg/kg, which is superior to the national standard method. GB/T 21312-2007 14 kinds of quinolone residues in animal-derived foods by liquid chromatography-mass spectrometry law".
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