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液液萃取—超高效液相色谱—串联质谱法快速检测原料乳中18种喹诺酮药物残留

Food & Machinery(2021)

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Abstract
目的:建立一种同时检测原料乳中18种喹诺酮类药物残留的快速检测方法.方法:采用液液萃取净化法进行前处理,并将该前处理技术与超高效液相色谱串联质谱相结合,分析原料乳中18种喹诺酮类药物的残留量.结果:18种喹诺酮在2.0~100.0 ng/mL内具有良好的线性关系(R2≥0.992),检出限为0.02~0.50 μg/kg,定量限为0.06~1.50 μg/kg;18种喹诺酮的加标回收率为74.0%~106.5%,相对标准偏差为1.1%~13.0%.结论:该方法简单高效、准确度高,可作为原料乳中喹诺酮类药物残留的定量确证检验方法.
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