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锡石单矿物中的痕量元素采用化学方法测定,存在样品不易分解、检测限高等困难,难于获得理想的结果.应用光谱法测定虽具有取样量少,可进行多元素同时测定等优点,但由于Sn的强扩散线326.2nm,303.4nm,284.0nm,270.6nm,266.1nm所产生的强背景,给测定其中的一些痕量元素,特别是In,Ge,Sc,Nb,Ta,Ag等带来很大的困难.本方法通过对缓冲剂及电极形状等工作条件的选择,利用分馏效应,
The trace elements in Cassiterite single mineral are determined by chemical method, which makes it difficult to decompose the sample and the detection limit is high, so it is difficult to obtain the ideal result.Using the method of spectrometry has many advantages such as less sampling, simultaneous determination of multiple elements, Due to the strong background generated by strong diffusion lines of Sn 326.2nm, 303.4nm, 284.0nm, 270.6nm, 266.1nm, some trace elements such as In, Ge, Sc, Nb, Ta, Ag etc To the great difficulty.This method through the buffer and electrode shape and other working conditions of choice, the use of fractionation effect,