| 土壤和沉积物中持久性有机污染物分析的不确定度评估 |
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| 引用本文： | 董亮,张烃,史双昕,周丽,张利飞,黄业茹.土壤和沉积物中持久性有机污染物分析的不确定度评估[J].化学分析计量,2011,20(2):19-23. |
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| 作者姓名： | 董亮 张烃 史双昕 周丽 张利飞 黄业茹 |
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| 作者单位： | 国家环境分析测试中心,国家环境保护二恶英污染控制重点实验室,北京,100029 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)项目，环保行业公益性科研专项 |
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| 摘 要： | 土壤和沉积物中POPs分析过程中的不确定度来源于样品制备、运输和保存、前处理和分析4个环节.土壤经四分法采样、均质化制样、快速溶剂萃取、多层符合硅胶柱净化、GC/MS分析.以p,p'-DDT为例,评定了各环节不确定度的大小,结果表明:样品前处理的不确定度分量对合成不确定度的贡献最大,约占90.6%;样品制备、保存和分析...
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| 关 键 词： | 持久性有机污染物 不确定度 土壤 沉积物 评定 |
EVALUATION OF UNCERTAINTY IN PERSISTENT ORGANIC POLLUTANTS ANALYSIS OF SOIL AND SEDIMENT |
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| Dong Liang,Zhang Ting,Shi Shuangxin,Zhou Li,Zhang Lifei,Huang Yeru.EVALUATION OF UNCERTAINTY IN PERSISTENT ORGANIC POLLUTANTS ANALYSIS OF SOIL AND SEDIMENT[J].Chemical Analysis And Meterage,2011,20(2):19-23. |
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| Authors: | Dong Liang Zhang Ting Shi Shuangxin Zhou Li Zhang Lifei Huang Yeru |
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| Institution: | (National Research Centre for Environmental Analysis and Measurement, State Key Laboratory for Dioxin Pollution Control, Beijing 100029, China) |
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| Abstract: | There were four necessary steps in persistent organic pollutants analysis of soil and sediment, which was： sampiing, transportation and preservation, preparation, and analysis. The sources of uncertainty in the entire course of the determining p,p＇-DDT in soil and sediment with qual, homogeneity, ASE, multi -layer column cleaning, GC -MS were evaluated. The predominant uncertainty of 90.6% was from sample preparation, the others from sampling, transportation and preservation, and analysis were 5.4%, 2.1% and 1.9% respectively. |
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| Keywords: | persistent organic pollutant uncertainty soil sediment evaluation |
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