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应用基质固相分散技术和液相色谱-串联质谱法(LC-MS/MS)测定了禽蛋中的苏丹红Ⅰ、Ⅱ、Ⅲ、Ⅳ染料.制备样品后装柱,用氯仿-乙腈(体积比为90∶10)混合溶剂洗脱,洗脱液浓缩定容后经ZORBAX SB-C18柱分离,采用电喷雾正离子多反应监控(MRM)模式质谱检测,外标法定量.苏丹红Ⅰ、Ⅱ、Ⅲ、Ⅳ的线性范围分别为0.5~100 ng/g,5.0~100 ng/g,1.0~100 ng/g和2.0~100 ng/g,线性方程的相关系数均大于0.99.样品的添加回收率在87.3%~113%之间,相对标准偏差均小于9.1% .4种苏丹红染料的检测低限分别为0.1,2.0,0.2,0.4 μg/kg,可以满足国内外禽蛋中苏丹红的监控要求.

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