岩矿测试2017，Vol.36Issue(4)：388-395,8.DOI:10.15898/j.cnki.11-2131/td.201609210141
长江三角洲沉积物标准物质研制
Preparation of Yangtze River Delta Sediment Reference Materials
摘要
Abstract
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.关键词
长江三角洲/标准物质/均匀性检验/稳定性检验/定值Key words
Yangtze River Delta/standard material/homogeneity test/stability test/certified value分类
化学化工引用本文复制引用
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):388-395,8.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) （1212010611401）
