建立了一种简单、快速、准确测定玩具中香豆素、7-甲氧基香豆素、二氢香豆素、7-甲基香豆素、7-乙氧基-4-甲基香豆素5种香豆素类致敏性香味剂的检测方法.样品经四氢呋喃超声提取,提取液浓缩至近干,以25 mL甲醇溶解残渣定容后进行高效液相色谱-串联质谱分析.色谱流动相为乙腈和0.1％乙酸水溶液,梯度洗脱,多反应监测(MRM)模式进行定性和定量分析.5种目标物的工作曲线线性范围均为10～1 000 μg/L；除了二氢香豆素的定量限(信噪比(S/N)＞ 10)为5.0μg/L外,其他化合物均为2.0μg/L；在3种不同类型的样品中添加高、中、低水平的5种目标物标准品,其加标回收率为93.2％ ～105.8％,相对标准偏差为3.65％～8.27％.应用本方法对12种玩具和儿童用品样品进行了测试,其中9个样品中检出了香豆素类致敏性香味剂,有两个样品中香豆素和7-甲氧基香豆素的含量超过了欧盟玩具新指令的限量要求.
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