Determination of boron in Japanese geochemical reference samples by neutron-induced prompt gamma-ray analysis
Determination of boron in Japanese geochemical reference samples by neutron-induced prompt gamma-ray analysis
复制标题
通过中子诱导瞬发伽马射线分析测定日本地球化学参考样品中的硼
DOI：
10.1007/bf02349071
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发表时间：
1999
影响因子：
1.6
通讯作者：
T. Adachi
中科院分区：
文献类型：
--
作者：
C. Yonezawa;P. P. Ruska;H. Matsue;M. Magara;T. Adachi
用JRR-3 M型冷、热导向中子束进行中子感生瞬发γ射线分析（PGA），测定了日本地质调查所（GSJ）制作的21个火成岩和沉积岩地球化学标准样品中的B ppm含量。由于B 478 keV的多普勒增宽γ射线，使Na、Ni、Cl等元素在测定B时产生光谱干扰。采用计算机拟合和参考峰法校正干扰。在推荐值的标准偏差范围内，本方法的分析结果与1994年推荐的GSJ值基本一致。还报道了用PGA测定的标准岩石样品中的钠含量。
Determination of ppm levels of B in 21 igneous and sedimentary rocks of the Japanese geochemical reference samples prepared by the Geological Survey of Japan (GSJ) has been performed by neutron-induced prompt γ-ray analysis (PGA) using cold and thermal guided neutron beams of the JRR-3M. Owing to the Doppler broadened γ-ray line of B 478 keV, many elements such as Na, Ni, Cl and so on showed spectral interference in the determination of B. The interference was corrected by computer fitting and a reference peak method. The analytical results obtained by the present method almost agreed with the GSJ values recommended in 1994 within the standard deviation of the recommended values. Sodium contents determined by the PGA in the reference rock samples are also reported.