Multi-element analysis of environmental samples by cold and thermal guided neutron induced prompt gamma-ray measurement
Multi-element analysis of environmental samples by cold and thermal guided neutron induced prompt gamma-ray measurement
复制标题
通过冷和热引导中子诱导瞬发伽马射线测量对环境样品进行多元素分析
DOI：
10.1007/bf02109882
复制
发表时间：
1997
影响因子：
1.6
通讯作者：
M. Hoshi
中科院分区：
文献类型：
--
作者：
C. Yonezawa;H. Matsue;M. Hoshi
研究了环境样品中多种元素的中子诱导瞬发γ-射线无损分析方法。利用JRR-3M反应堆的冷导和热导中子束，对H、B、C、N、Na、Mg、Al、Si、P、S、Cl、K、Ca、Ti、Mn、Fe、Co、Cd、Sm、Gd、Hg等元素进行了PGA比较定标，并对几种环境标准物质进行了分析。除生物样品中的氢、碳、氮和氯外，其余元素分析的准确度和精密度均优于20%。不同环境基质中B、Cd、Sm、Gd的检出限为25~820ngg/g，H、Na、S、氯、K、钛、锰、钴、汞的检出限为1.1ngg/g~820ngg/g，碳、氮、镁、铝、硅、磷、钙、铁的检出限为0.031~10%。本方法正与国际原子能机构和电感耦合等离子体质谱一起应用于战后波斯湾的环境研究。
Non-destructive multi-element determination in environmental samples by neutron-induced prompt γ-ray analysis (PGA) has been investigated. Comparative standardization for the elements including H, B, C, N, Na, Mg, Al, Si, P, S, Cl, K, Ca, Ti, Mn, Fe, Co, Cd, Sm, Gd, Hg by PGA has been carried out using the cold and thermal guided neutron beams of JRR-3M reactor and then several environmental reference materials have been analyzed. Accuracy and precision of better than 20% were found for these elemental analyses except for H, C, N and Cl in biological samples. Detection limits in various environmental matrices were 25 to 820 ng/g for B, Cd, Sm and Gd, 1.1 to 820 μg/g for H, Na, S, Cl, K, Ti, Mn, Co and Hg, and 0.031 to 10% for C, N, Mg, Al, Si, P, Ca and Fe. The present method is being applied to environmental studies of post war Persian Gulf together with INAA and ICP-MS.