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目的:建立同时测定鸡蛋中诺氟沙星、氧氟沙星、培氟沙星、环丙沙星、洛美沙星、达氟沙星、恩诺沙星、沙拉沙星、二氟沙星残留的固相萃取-LC-MS/MS测定方法。方法:鸡蛋样品经乙腈沉淀蛋白质和正己烷脱脂后,过HLB固相萃取小柱净化,LC-MS/MS分析,流动相为乙腈-0.1%甲酸(13∶87),色谱柱为岛津Shim-packVP-ODSC18柱。结果:建立的固相萃取-LC-MS/MS选择性好,灵敏度和准确度均良好。结论:建立的方法可作为多种药物残留检测的常规方法。
Objective: To establish a method for the simultaneous determination of norfloxacin, ofloxacin, pefloxacin, ciprofloxacin, lomefloxacin, danofloxacin, enrofloxacin, Solid-phase extraction -LC-MS / MS method. Methods: The egg samples were degreased with acetonitrile and n-hexane, and purified by LC-MS / MS. The mobile phase was acetonitrile-0.1% formic acid (13:87), and the column was Shimadzu Shim -packVP-ODSC18 column. Results: The established solid-phase extraction-LC-MS / MS has good selectivity, good sensitivity and accuracy. Conclusion: The established method can be used as a routine method for the detection of multiple drug residues.