| 土壤中多氯联苯成分分析标准物质的研制与定值 |
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| 引用本文： | 高丽荣,郑明辉,李敬光,张兵,刘文彬,赵兴茹,安凤春,房丽萍,吴永宁.土壤中多氯联苯成分分析标准物质的研制与定值[J].分析化学,2006,34(11):1579-1582. |
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| 作者姓名： | 高丽荣 郑明辉 李敬光 张兵 刘文彬 赵兴茹 安凤春 房丽萍 吴永宁 |
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| 作者单位： | 1. 中国科学院生态环境研究中心,北京,100085
2. 中国疾病预防控制中心营养与食品安全所,北京,100050 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 介绍了土壤中多氯联苯成分分析标准物质研制与定值方法。土壤采自我国东部某变压器油污染地区,经过风干、研磨、筛分、烘干和混匀后加工处理并装1000瓶。随机抽取20瓶做瓶间均匀性检验;随机抽取两瓶,每瓶取5份,做瓶内均匀性检验。分析测试结果经过F检验和t检验,在95%置信区间内。经过一年时间-18℃和20℃稳定性检验,分析测试结果经过t检验在95%置信区间内。标准物质利用同位素稀释质谱法对14种共平面和指示性多氯联苯同类物定值,并经过4个实验室进行试用,进一步验证了定值的准确性。此标准物质于2006年3月通过国家一级标准物质的终审。本实验所提出的有机污染物标准物质的制备方法,对在我国开展环境分析质控产品的研制具有参考和借鉴价值。
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| 关 键 词： | 多氯联苯 土壤 标准物质 定值 |
| 收稿时间： | 12 28 2005 12:00AM |
| 修稿时间： | 2005-12-282006-05-04 |
Preparation, Testing and Certification of Soil Reference Materials for Polychlorinated Biphenyls |
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| Gao Lirong,Zheng Minghui,Li Jingguang,Zhang Bing,Liu Wenbin,Zhao Xingru,An Fengchun,Fang Liping,Wu Yongning.Preparation, Testing and Certification of Soil Reference Materials for Polychlorinated Biphenyls[J].Chinese Journal of Analytical Chemistry,2006,34(11):1579-1582. |
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| Authors: | Gao Lirong Zheng Minghui Li Jingguang Zhang Bing Liu Wenbin Zhao Xingru An Fengchun Fang Liping Wu Yongning |
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| Institution: | 1,Research Center for Eco-Environmental Science, Chinese Academy of Science.s, Beijing 100085 ;2,Institute of Nutrition and Food Hygiene, Chinese Center for Disease Control and Prevention, Beijing 100050 |
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| Abstract: | A methodology for preparing the reference material of polychlorinated biphenyls(PCBs) in soil is described.The soil sample collected from a polluted area in east of China was dried,ground,homogenized,packed and tested on stability and homogeneity.The materials were analyzed by isotope-dilution mass spectrometry.And then the analysis results were validated by four laboratories.The contents of six indicator congeners(CB28,CB52,CB101,CB138,CB153 and CB180) and eight dioxin-like congeners(CB77,CB81,CB105,CB114,CB118,CB156,CB157,CB167) were certified for this material.The material was intended for use in the method validation and quality control for congener-specific of PCBs in soil or sediments. |
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| Keywords: | Polychlorinated biphenyls soil reference material certification |
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