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Position: Home > Articles > A Method for Separating PCBs and OCPs in Biota Samples Journal of Agricultural Resources and Environment 2014 (05) 73-81

高脂肪样品中PCBs和OCPs分离方法研究

作  者:
宫福强;包姣灵;王迎春;吕晓宁;孙梦雪;李清波
单  位:
大连市环境监测中心;大连海事大学环境科学与工程学院
关键词:
填料;多氯联苯;有机氯农药;分离方法
摘  要:
研究开发了用于分离高脂肪样品中21种多氯联苯(PCBs)和22种有机氯农药(OCPs)的分离柱填料,以及利用该填料分离含脂肪的动物组织样品中PCBs或OCPs的方法。该填料按质量百分比由硅胶-弗罗里硅土混合物30%~35%、酸性改性硅胶50%~60%和无水硫酸钠10%~15%组成,并使用自主研发的四通道色谱分离仪对样品进行分离和净化。利用本方法的填料分离PCBs或OCPs,分离方法高效、快速、工艺简单,可在成本较低的条件下达到显著的分离效果。PCBs化合物柱回收率可达96.4%~119%,对鱼脂肪组织加标回收率可达74.4%~100%;OCPs化合物柱回收率可达78.4%~103%,对鱼脂肪组织加标回收率可达78.3%~102%。结果表明该填料可用于分离PCBs或OCPs,色谱分离效果良好,可以满足高脂肪样品中OCPs和PCBs的监测分离需要。
译  名:
A Method for Separating PCBs and OCPs in Biota Samples
作  者:
GONG Fu-qiang;BAO Jiao-ling;WANG Ying-chun;L Xiao-ning;SUN Meng-xue;LI Qing-bo;Dalian Environmental Monitoring Center;Department of Environmental Science and Engineering, Dalian Maritime University;
关键词:
solid phase;;polychlorinated biphenyls;;organochlorine pesticides;;fraction
摘  要:
Chromatographic fraction and cleanup method was developed for PCBs and OCPs in biota samples, using a self-developing chromatographic fraction instrument and solid phase mixture. The solid phase was composed of florisil(30%~35%), acid-treated silica gel(50%~60%)and anhydrous sodium sulphate(10%~15%). The recoveries of spiked PCBs and OCPs in column ranged from 96.4% to 119% and from78.4% to 103% respectively, while in fish fat tissue ranged from 74.4% to 100% and from 78.3% to 102% respectively. This approach was proved to be an efficient, fast, simple and cost-effective method for fraction and cleanup of PCBs and OCPs in biota samples.

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