Ayabe M, Hirao Y, Kimura K
Radioisotopes. 1980 Oct;29(10):474-8. doi: 10.3769/radioisotopes.29.10_474.
Ruthenium, silver, rhenium, osmium, iridium, platinum and gold in standard rock samples from Geological Survey of Japan (JB-1, JB-2, JG-1 and JA-1) were determined by thermal neutron activation method with a systematic chemical separation. U.S. Geological Survey standard rocks (BCR-1 and G-2) were also analyzed to obtain an information about the accuracy and precision on the method. Generally agreement of our results with previous values for BCR-1 and G-2 was excellent. The noble metal contents in the igneous rocks from Japanese region were approximately comparable to those in the corresponding rocks from the continental region, and showed a tendency to decrease with increasing silica contents, with weak interrelations to other major elements.
采用热中子活化法并经过系统的化学分离，测定了日本地质调查局标准岩石样品（JB - 1、JB - 2、JG - 1和JA - 1）中的钌、银、铼、锇、铱、铂和金。还分析了美国地质调查局的标准岩石（BCR - 1和G - 2），以获取有关该方法准确性和精密度的信息。总体而言，我们对BCR - 1和G - 2的结果与先前值吻合良好。日本地区火成岩中的贵金属含量与大陆地区相应岩石中的含量大致相当，并且呈现出随着二氧化硅含量增加而降低的趋势，与其他主要元素的相关性较弱。
