快速溶剂萃取-超高效液相色谱-串联质谱法测定蜂花粉中氯霉素
Science and Technology of Food Industry（2015）
Abstract
建立了快速溶剂萃取-超高效液相色谱-串联质谱法(UPLC-MS/MS)测定蜂花粉中氯霉素的分析方法.样品以乙酸乙酯为萃取溶剂经快速溶剂萃取仪(ASE)萃取,硅胶固相萃取柱净化,采用液质联用多反应监测负离子模式测定,同位素内标法定量.方法线性范围0.5～10 ng/mL,相关系数为R2=0.9936,回收率在88.3％～110.0％之间,相对标准偏差在5.3％～8.9％之间,检出限为0.1 μg/kg.该方法具有效率高、试剂用量少、选择性好、灵敏度高等优点.
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Key words
chloramphenicol residue,bee pollen,extraction-ultra,chromatography-tandem
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