电弧浓缩法测定地质样品中的铪和钽  

Determination of arc concentration of hafnium and tantalum in geological samples

作　　者：高希娟[1] 杨红国[1] 李星[1] 魏利[1] 王莉[1] 

机构地区：[1]河北省地矿中心实验室,河北保定071051

出　　处：《中国矿业》2010年第7期111-113,共3页China Mining Magazine

摘　　要：通过精心选择电极规格尺寸、缓冲-指示剂的比例、内标和摄谱条件,充分利用样品的分馏效应,把基体元素预先蒸发出来,使得被测元素和大量的基体元素有效分离。充分富集了被测难挥发元素,具有操作简单、分析速度快、灵敏度高等优点。用国家一级标准物质进行验证,结果满意。A method for the determination of hafnium and tantalum in geological samples was reported in this paper.The volatile matrix elements were evaporated from major elements in advance through carefully selecting of electrode sizes,the ratio of buffer and indicator,internal standard and the conditions of spectrographic analysis based on the principle of the sample fractionation effects,and then the major elements were concentrated effectively.The spectrographic analysis method provides the advantages of simple operation,high efficiency and high sensitivity and has been verified by analyzing the national standard reference materials and the results are agreement with certified values.

关 键 词：电弧浓缩 铪和钽 分馏效应 地质样品 

分 类 号：P618.45[天文地球—矿床学]