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本文叙述了GXR1—6中23个元素的中子活化分析方法。首先用仪器中子活化分析测定稀土元素La、Sm、Lu、Yb、和Na、Ba、Rb、Cs、Hf、As、Sb、Th、Cr、Sc、Co、Fe、U等其它元素,然后将样品碱熔、酸解、TIOA萃取Fe、P-204反相分配色层浓集总稀土,最后测定Ce、Nd、Eu、Gd、Tb、Tm等6个稀土元素。 1980年地质矿产部首批发行了水系沉积物GSD1-8的地球化学标准参考样。有40余个有经验的实验室和两个国外实验室对GSD1-8进行了多元素测定。中子活化分析在稀土和稀有元素的定值工作中起了重要作用。
This article describes the 23 elements of the GXR1-6 neutron activation analysis. First, the rare earth elements La, Sm, Lu, Yb and other elements such as Na, Ba, Rb, Cs, Hf, As, Sb, Th, Cr, Sc, Co, Fe and U were measured by instrumental neutron activation analysis. Nd, Eu, Gd, Tb and Tm were determined by alkali melting, acidolysis, TIOA extraction and P-204 reversed-phase partitioning chromatography. In 1980, the Department of Geology and Mineral Resources issued the first geochemical reference samples of sediments GSD1-8. There are more than 40 experienced laboratories and two foreign laboratories conducted a multi-element GSD1-8 determination. Neutron activation analysis plays an important role in the valuation of rare earths and rare elements.