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本文针对地化模式样品的特点,进行了大量的探索性试验,拟定了以纯碳粉为缓冲剂,用Pd、Yb、LVT作内标,定量地分析了地化模式样品中的Cu、Pb、Zn、Ag、Bi、Co、Ni、V、Mn、Ga、In、Cd、B、Be、Cr、Sr、Ba等十七个元素。 本方法可以分析硅酸岩、中性岩(指CaO、SiO_2含量在硅酸岩和灰岩之间的样品)、灰岩及常见的几种有色金属矿石样品,它对各种岩石、矿石、矿物样品的适应范围很广,分析精度比较高,分析误差达到部颁的要求,分析合格率均在85％以上(多在95％以上);分析速度快,每天可分析400件矿样,已做到每月分析扫面样8.000件或模式样品4000件。 该法经过2年的生产考验,现已分析化探扫面样,化探模式样共10万件,分析质量可靠。
In this paper, a large number of exploratory experiments were carried out according to the characteristics of the geochemical model samples. A pure carbon powder was used as a buffer and Pd, Yb and LVT were used as internal standards to quantitatively analyze the contents of Cu, Pb, Seventeen elements of Zn, Ag, Bi, Co, Ni, V, Mn, Ga, In, Cd, B, Be, Cr, Sr and Ba. The method can analyze silicate, neutral rock (CaO, SiO 2 content between silicate and limestone), limestone and several common non-ferrous metal ore samples, it is a variety of rock, ore, Mineral samples to adapt to a wide range of high precision analysis, the analysis of errors to meet the ministerial requirements, the analysis of qualified rates are above 85% (more than 95%); analysis of fast, daily analysis of 400 ore samples have been Do monthly analysis of 8.000 pieces of surface-like or model samples 4000. After two years of production test, the method has been analyzed by scanning the surface, geochemical exploration patterns like a total of 100,000, the analysis of reliable quality.