Determination of 13 polybrominated diphenyl ethers in soil by matrix solid phase dispersion method and gas chromatography/ mass spectrometry(基质固相分散-气相色谱/质谱法测定土壤中13种多溴联苯醚)
建立了基质固相分散萃取-气相色谱/质谱法测定土壤中13种多溴联苯醚的分析方法.对固相分散剂种类、样品与分散剂用量比例、洗脱溶剂及用量进行了选择和优化.最佳前处理条件为：2 g样品与4 g酸性硅胶固相分散剂研磨10 min，混合物装入预先填好4 g无水硫酸钠和4 g酸性硅胶的玻璃柱中，以50 mL正己烷/二氯甲烷(v：v= 1:1)混合液洗脱并浓缩至0.5 mL，进GC-MS分析.13种多溴联苯醚在2~200 ng • g-1内呈良好的线性关系(R2>0.992).平均加标回收率在81%~103%，相对标准偏差(RSD)小于15% (n = 3)，方法检出限为75~950 pg • g-1...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Zhejiang University Press
2017-01-01
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| Series: | Zhejiang Daxue xuebao. Lixue ban |
| Subjects: | |
| Online Access: | https://doi.org/10.3785/j.issn.1008-9497.2017.01.015 |