同位素标准物质量值不确定度的表达
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摘要: 〕本文给出了同位素标准物质研制中不确定度的表达公式，讨论了原料富集情况、质谱测量、同位素标准物质预期丰度等因素的影响，并对所述方法进行了应用举例Abstract: The Expression of Measurement Uncertainty in Isotopic Standard Materials PreparationAuthor Yao Jijun,Zhang Hongjing,Li Jinying(China Institute of Atomic Energy,Beijing 102413,China)Received 19980929 Abstract The uncertainty expression formulae in isotopic standard reference materials preparation are given,and influences of factors such as the enrichment of raw materials,mass spectrometry measurement and the expected abundance of isotopic standard reference materials are discussed.The method is applied for an example.Key Words: isotopic standard reference materials,mass spectrometry measurement,uncertainty
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