铀钼矿石及碳酸盐型铀矿石标准物质研制

根据我国铀矿石的特点及相关元素的实际含量，研制了5个水平的标准物质用于加强铀矿科研和矿山生产的质量管理，监控分析检测工作质量，其中3个为以铀钼矿石为基体的铀钼矿石标准物质，2个为碳酸盐型铀矿石标准物质。并将铀钼矿石标准物质中的铀、钼、铁、硅（二氧化硅）、磷、氟、钒、砷、碳、硫，及碳酸盐型铀矿石标准物质中的铀、钙、镁、铝、硅（二氧化硅）、磷、钒、有机碳、无机碳等元素进行定值。分别采用F检验法和t检验法评价了标准物质的均匀性和稳定性。结果显示，所制得的标准物质的均匀性和稳定性均符合要求。各元素的定值采用多家实验室比对定值，定值数据均满足“一级标准物质技术规范”数据统计要求。

Development of Reference Material for Uranium-Molybdenum and Carbonate-type Uranium Ores

Based on the characteristics of China’s uranium ores and the actual contents of relevant elements ,five level reference materials were developed ,so as to strengthen the quality control for the research and production practices and monitor the analysis quality .In this paper ,3 reference materials made of uranium‐molybdenum ore and 2 reference materials made of carbonate‐type uranium ores were developed .The values of U ,Mo ,Fe ,Si(SiO2 ) ,P ,F ,V ,As ,S and C for uranium‐molybdenum ore reference materials ,and those of U ,Ca ,M g ,Al ,Si(SiO2 ) ,P ,V ,organic C and inorganic C for carbonate‐type uranium ore reference materials were determined ,compared and fixed by a number of laboratories .The homogeneity and stability for the reference materials were examined by F‐test and t‐test respectively .T he statistical processing of all the test data is conformed to the Technical Specification of Primary Reference Materials .