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锗、铊、铟、镓稀散元素,常伴生在硫化矿、磁铁矿、多金属矿、铝土、煤等矿床中,很少富集形成单独矿物。近年来,光谱法测定稀散元素的文献不少,在不同程度上较成功地解决了一些分析问题。为了解决不同矿石中锗、铊、铟、镓的同时测定,我们引进了一种新的缓冲剂。用此缓冲剂所拟定的方法,其速度、灵敏度和准确度基本上能满足地质工作的要求。经几年来生产实践证明,效果良好。本法以碳酸锂:锌粉:二氧化硅:五硫化锑:氟化钠=1.5:1:1.5:0.5:0.5为缓冲剂。锡,铋为内标。直流电弧为激发光源。在苏联KCA-1大型摄谱仪上摄谱。分析范围为0.0001～0.03％。经条件实验和不同矿种分析证明,本法可分析铅锌铜矿,多金属矿,铁矿,岩石,铝土等矿种中锗、铊、铟、镓。
Ge, thallium, indium, gallium scattered elements, often associated with sulphide ore, magnetite, polymetallic ore, bauxite, coal and other deposits, rarely enriched in the formation of separate minerals. In recent years, there are a lot of literature about the determination of the scattered elements by spectrometry, which has successfully solved some analytical problems to different degrees. In order to solve the simultaneous determination of germanium, thallium, indium and gallium in different ores, we have introduced a new buffer. The proposed method using this buffer, the speed, sensitivity and accuracy can basically meet the requirements of geological work. After several years of production proved that the effect is good. This method uses lithium carbonate: zinc powder: silica: antimony pentasulfide: sodium fluoride = 1.5: 1: 1.5: 0.5: 0.5 as a buffer. Tin, bismuth for the internal standard. DC arc excitation light source. Photographed on the Soviet KCA-1 large spectrograph. The analysis range is 0.0001 ~ 0.03%. The conditional experiments and analysis of different minerals proved that this method can analyze germanium, thallium, indium and gallium in lead, zinc and copper ore, polymetallic ore, iron ore, rock and bauxite.