NIST1577c牛肝标准参考物质的多元素中子活化分析

Multielemental Analyzing of a Standard Reference Material NIST1577c by Neutron Activation Aanlysis

摘要: 采用中子活化分析方法分析了美国NIST1577c牛肝标准参考物质。利用中国原子能科学研究院重水反应堆对样品进行辐照，采用高纯锗伽马谱仪对样品进行分析。采用有证标准物质NIST1577、1577a、1632c和1633a对牛肝样品分析进行质控，得到了参考物质的多元素分析结果。本实验测定的结果与NIST测定的结果在不确定度范围内一致。

Abstract: The reference material NIST1577c was analyzed by neutron activation analysis. Multielemental concentrations were determined using relative method based on chemical standards, with k₀ method as reference. NIST1577，1577a, 1632c and 1633a were used for quality control of 1577c. The results of multielemental concentrations for the reference materials were obtained and compared with NIST. The rssults of this experiment and that of NIST were consistent in the extension of uncertainty.