Uncertainty assessment in instrumental neutron activation analysis of biological materials

被引：0

作者：

E. G. Moreira

M. B. A. Vasconcellos

M. Saiki

机构：

[1] Instituto de Pesquisas Energéticas e Nucleares,

[2] IPEN/CNEN-SP,undefined

[3] Research Reactor Center,undefined

[4] Neutron Activation Analysis Laboratory,undefined

[5] Instituto de Pesquisas Energéticas e Nucleares,undefined

[6] IPEN/CNEN-SP,undefined

[7] Research Reactor Center,undefined

[8] Neutron Activation Analysis Laboratory,undefined

[9] Instituto de Pesquisas Energéticas e Nucleares,undefined

[10] IPEN/CNEN-SP,undefined

[11] Research Reactor Center,undefined

[12] Neutron Activation Analysis Laboratory,undefined

来源：

Journal of Radioanalytical and Nuclear Chemistry | 2006年 / 269卷

关键词：

Instrumental Neutron Activation Analysis; Standard Uncertainty; Traceability Link; Uncertainty Assessment; Combine Standard Uncertainty;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The expression of measurement uncertainties in a standardized form is a requirement for result reliability as it imposes implications to the interpretation of analytical results. In this work, sample mass, elemental standard mass, element decay constant and sample and elemental standard activities were identified as the most important uncertainty sources for the relative method of instrumental neutron activation analysis. The contribution of these sources to the expanded standard uncertainty in the concentration of As, Co, Cr, Fe, K, Na, Se and Zn in biological materials of marine origin was assessed and sample activity was identified as the major contribution.

引用

页码：377 / 382

页数：5