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文章摘要
辛文彩,夏宁,徐磊,朱志刚.长江三角洲沉积物标准物质研制[J].岩矿测试,2017,36(4):388-395
XIN Wen-cai,XIA Ning,XU Lei,ZHU Zhi-gang.Preparation of Yangtze River Delta Sediment Reference Materials[J].Rock and Mineral Analysis,2017,36(4):388-395.DOI:10.15898/j.cnki.11-2131/td.201609210141
长江三角洲沉积物标准物质研制
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Preparation of Yangtze River Delta Sediment Reference Materials
投稿时间:2016-09-21  修订日期:2017-07-20
DOI:10.15898/j.cnki.11-2131/td.201609210141
中文关键词: 长江三角洲  标准物质  均匀性检验  稳定性检验  定值
英文关键词: Yangtze River Delta  standard material  homogeneity test  stability test  certified value
基金项目:中国地质调查局地质调查项目——长江口以北沙泥质海岸带地区环境地质调查与评价(1212010611401)
作者单位
辛文彩 中国地质调查局青岛海洋地质研究所, 山东 青岛 266071 
夏宁 内蒙古自治区地质调查院, 内蒙古 呼和浩特 010020 
徐磊 中国地质调查局青岛海洋地质研究所, 山东 青岛 266071 
朱志刚 中国地质调查局青岛海洋地质研究所, 山东 青岛 266071 
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中文摘要:
      美国、加拿大等国家先后研制了10余个海湾和河口沉积物标准物质,但定值成分较少,大多侧重于有机污染物和放射性核素值。我国于2007年研制了3个黄河三角洲沉积物标准物质,为进一步满足近海地球化学调查及资源勘探的需要,本文按照ISO导则35和国家一级标准物质技术规范,研制了2个长江三角洲沉积物标准物质。按照不同粒径采集两个候选物样品,样品经干燥、球磨至200目,采用电感耦合等离子体质谱和发射光谱法进行均匀性检验,结果表明F实测值小于列表临界值F0.05(24,25)=1.96,样品均匀性良好。在两年时间内采用X射线荧光光谱法进行了4次稳定性检验,未发现统计学意义上的明显变化,样品稳定性良好。由12家有技术权威的实验室共采用13种准确、可靠的分析方法进行协作定值,最终定值元素53项,涵盖了主量、微量及全部稀土元素,其中主量成分含量呈梯度分布,如Al2O3的含量分别为16.42%、11.48%。该系列标准物质定值元素种类多,定值方法准确,能够为河口三角洲地区地质及环境调查的分析测试工作提供可靠的质量保证。
英文摘要:
      More than 10 harbour and estuarine sediment reference materials have been developed in the United States, Canada and other countries, but most of them focus on organic pollutants and radionuclide, and lack certified values. Three sediment reference materials of the Yellow river delta have been prepared in China in 2007. In order to meet the needs of offshore marine sediment geochemical surveys and resource exploration, two sediment standard materials of the Yangtze river delta were prepared according to ISO guidelines and technical standards for reference standards at the national level. Two samples were collected according to different particle sizes, and were dried and ball milled to 200 mesh. Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) and Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES) were used to test the homogeneity. Results show that the F values for the variance test were less than the threshold, which indicates good homogeneity. X-ray Fluorescence Spectroscopy was used for a four-time stability test in two years. No statistically significant changes were observed and the stability of the samples was good. A total of 13 accurate and reliable analytical methods were used in 12 technologically significant laboratories to finalize the contents of 53 elements. The major elements show gradient distribution with 16.42% and 11.48% of Al2O3. These two reference materials have multiple elements with determined values by accurate and reliable methods, which can provide quality assurance for the analysis and testing during geological and environmental surveys in the Delta region.
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主办单位: 中国地质学会岩矿测试技术专业委员会国家地质实验测试中心

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