超细标准物质与超细样品分析研究进展

自"Geoanalysis2003"国际会议首次报道超细标准物质和美国NIST首次公布超细海洋沉积物标准SRM2703以来,超细标准物质研制与超细样品分析研究工作在我国已取得可喜进展。文章简述了我国超细标准物质的研究背景,着重说明了地质分析中分析技术进步推动样品粒度阶梯性减小的历史演化和X射线荧光光谱分析在发现样品粒度已成为分析精度再提高的关键中发挥的重要作用;评介了中国近年先后研制碳酸盐岩石、海洋沉积物、海山富钴结壳铂族元素、海湾河口沉积物和多种矿石等超细标准物质的实践和超细样品在X-射线荧光技术、电感等离子体光谱/质谱中应用的研究工作;探讨了与超细样品制备相关的技术、该项研究工作的意义和对分析实验室技术的深远影响;同时也讨论了其现存问题及发展前景。

Research Progress of Ultra-Fine Reference Materials and Ultra-Fine Samples

Since the ultrafine reference materials were reported firstly by the“Geoanalysis2003”international conference and the standard SRM2703 for ultrafine marine sediments were published firstly by NIST,the research and development of ultra-fine reference materials and analysis of ultrafine samples had made gratifying progress in China.The research background of ultra-fine reference materials in China was introduced briefly.It was emphasized that the historical evolut ion of sample size and analytical accuracy promoted alternately in geological analysis and that the analysis of X-ray fluorescence spectrometry had played an important role on finding that sample size had become the key to make further improvement on the analytical accuracy.And the research work on the application of ultra-fine reference materials was reviewed in China,such as carbonate,marine sediments,Platinum group elements in seamount cobalt rich crust,platinum group elements,Gulf estuarine sediments,a variety of minerals.And the research of ultra-fine samples was reviewed by X-ray fluorescence technology and Inductively plasma spectroscopy/mass spectrometry in recent years.The technology and the research work related to the preparation of ultra-fine samples were discussed.The significance of the work and its recent and far-reaching influence on the analytical laboratory were also pointed out.