以C18为基质固相分散剂,采用基质固相分散技术进行样品前处理,建立了基质固相萃取-液相色谱法分析牛奶和蜂蜜中4种氟喹诺酮的方法,并对基质固相萃取条件和色谱分离条件进行了探讨和优化.在2.5 ng/g和10.0 ng/g 添加水平,4种氟喹诺酮类药物的平均加标回收率为81.9%～111.6%,相对标准偏差<7%.检出限为 0.05 μg/L.
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