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锌自然铜是一种天然金属矿物,颗粒粒径大都在60—90微米之间,一粒矿物仅有1-几个微克,且矿物很难选,若按微量分析(1-10毫克)的要求,则需在镜下化大量的时间选矿。我们根据原子吸收光谱灵敏度高,精密度好的特点,在分析条件上尽量克服各种污染的来源,在溶样器皿、分液、定容等方面进行了一些改进和革新,在测量准确度等方面作了大量工作,并选择了最佳分析条件,因而完成了粒径在60微米的单个颗粒分析,分析结果与其它鉴定手段结果一致,分析误差可控制在2％以内。
Zinc Natural Copper is a natural metal mineral, the particle size is mostly between 60-90 microns, a grain of only 1 to several micrograms, and the mineral is difficult to choose, if by micro analysis (1-10 mg) of Requirements, you need a lot of time in the mirror dressing. According to the characteristics of high sensitivity and good precision of atomic absorption spectrometry, we try our best to overcome the sources of various kinds of pollution in the analysis conditions, and make some improvements and innovations in the areas such as sample containers, A great deal of work has been done and the best analytical conditions have been selected. As a result, a single particle analysis with a particle size of 60 μm has been completed. The analysis results are consistent with those of other identification methods and the analytical errors can be controlled within 2%.