建立了鸭蛋黄中苏丹红Ⅰ～Ⅳ号的超高效液相色谱-串联四极杆质谱联用(UPLC-MS/MS)的分析方法.采用乙腈提取样品中的苏丹红,加水反沉淀除去蛋白质和脂肪等杂质,冷冻后高速离心,取上层清液供UPLC-MS/MS分析.经Waters Acquity BHE C18超高效液相色谱柱分离,串联四极杆质谱多反应监测模式检测,4种物质的检出限均为0.05 μg/L,实际样品中4种物质的检出限为10 μg/kg.采用标准添加法测定苏丹红的回收率,100.0,200.0,300.0 μg/kg 3个不同添加水平的回收率为50.2%～101.3%.实验结果表明该方法灵敏度高,检出限低,确证能力强,分析时间短,可满足高通量食品样品中苏丹红的日常检测.
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