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环境化学  2015 

加速溶剂萃取/凝胶渗透色谱净化/气相色谱-负化学离子源质谱测定生物样品中的四溴联苯醚

Keywords: 生物样品,BDE-47,加速溶剂萃取,凝胶渗透色谱,气相色谱/负化学离子源质谱

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Abstract:

建立了一种分析生物样品中四溴联苯醚(BDE-47)的方法.获得了优化的前处理条件和GC/MS检测条件,采用加速溶剂萃取(ASE)-凝胶渗透色谱(GPC)/多层硅胶-氧化铝复合柱净化,气相色谱-质谱(负化学离子源)(GC/NCI-MS)分析.以猪肝为基质的BDE-47加标回收率结果为77.3%—118.7%,相对标准偏差在1.9%—6.1%之间,方法检出限为0.081ng·g-1(干重).实验结果证明,该方法不仅灵敏度高、线性范围广、重复性好、回收率高,而且自动化程度高、快速简便,完全满足生物样品中痕量BDE-47的分析要求.所建立的方法已用于4种生物样品中BDE-47的分析,检测结果可靠.

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