Multi-Element Determination by a Cold Neutron-Induced Prompt Gamma-Ray Analysis
Multi-Element Determination by a Cold Neutron-Induced Prompt Gamma-Ray Analysis
复制标题
通过冷中子诱发瞬发伽马射线分析进行多元素测定
DOI：
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发表时间：
1996
期刊：
影响因子：
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通讯作者：
C. Yonezawa
中科院分区：
文献类型：
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作者：
C. Yonezawa
研究了冷中子感生瞬发γ射线分析（PGA）无损多元素测定。元素H、C、N、Na、Mg、Al、Si、P、S、Cl、K、Ca、Ti、Mn、Fe、Co、Cd、Sm、Gd和Hg使用JRR-3 M（升级的日本研究堆3号）的冷中子引导束通过比较标准化进行测定。为了准确测定元素的量，检查和评价了其他元素和背景计数的可能干扰。测定了地质、环境、生物样品、煤和燃料油等多种标准物质中的多种元素，并对多元素测定的准确度和精密度进行了评价。准确测定了环境样品中微克/克的镉和汞等有毒元素。Cd、Sm、Gd的检出限为25 ~ 820 ng/g，H、Na、S、Cl、K、Ti、Mn、Co、Hg的检出限为1.1 ~ 820 μg/g，C、N、Mg、Al、Si、P、Ca、Fe的检出限为0.031 ~ 10%。
A non-destructive multi-element determination using a cold neutron-induced prompt y-ray analysis (PGA) has been investigated. The elements H, C, N, Na, Mg, Al, Si, P, S, CI, K, Ca, Ti, Mn, Fe, Co, Cd, Sm, Gd and Hg were determined by a comparative standardization using the cold neutron guided beams of JRR-3M (upgraded Japan Research Reactor No. 3). To accurately determine the amounts of elements, possible interferences by other elements and background counts were examined and evaluated. Many elements in several reference materials, such as geological, environmental, and biological samples, coal and fuel oil, were determined, and the accuracy and precision of a multi-element determination were estimated. Toxic elements, such as Cd and Hg, at ug/g levels were accurately determined in environmental samples. The detection limits in various matrices were from 25 to 820 ng/g for Cd, Sm and Gd, 1.1 to 820 μg/g for H, Na, S, CI, K, Ti, Mn, Co and Hg, and 0.031 to 10% for C, N, Mg, Al, Si, P, Ca and Fe.