【摘 要】
：
建立了测定玩具中双酚A迁移量的高效液相色谱-串联质谱(HPLC-MS/MS)方法.改进了欧盟玩具安全标准EN 71-10：2005以水为模拟液的迁移条件,提出了迁移后模拟液经混合纤维素酯
【机 构】
：
广东检验检疫技术中心,广东广州510623
【出 处】
：
2018年第十五届全国青年分析测试学术报告会
论文部分内容阅读
建立了测定玩具中双酚A迁移量的高效液相色谱-串联质谱(HPLC-MS/MS)方法.改进了欧盟玩具安全标准EN 71-10：2005以水为模拟液的迁移条件,提出了迁移后模拟液经混合纤维素酯(MCE)过滤器过滤后直接由HPLC-MS/MS分析的方法.研究了不同材质针式过滤器对双酚A的影响.结果 表明,聚酰胺(PA、尼龙66)和聚醚砜(PES)过滤器会导致双酚A大量损失,而MCE过滤器对双酚A的回收率最高(＞90％).该方法在2～100 μg·L-1范围内呈良好线性关系,相关系数(r2)大于0.999,方法检出限(LOD)为0.30～0.52 μg·L-1,定量下限(LOQ)为1.00～1.72 μg·L-1,加标回收率为96.5％～106％,相对标准偏差(RSD,n=7)为2.0％～8.6％.该法可满足欧盟指令(Eu)2017/898中双酚A迁移限量(0.04 mg·L-1)的要求,且避免了因过滤器选择不当导致的双酚A损失,具有较好的实际意义.
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