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用双毛细管喷雾器以氢化物原子吸收法分析矿物岩石及金属中微量铋是一个简便、灵敏快速的方法。方法不需要任何特殊装置,不用惰性气体而且具有很好的重复性。与氢化物法的文献比较,所推荐的方法干扰也要少得多。文中详细地研究了酸度、硼氢化钾量以及其它参数的影响,对于各种共存元素的影响也做了详细的试验,提出了克服铜干扰的方法。文中提出了矿物岩石中微量铋的分析方法,从所得结果来看,方法是可行的。
Analysis of mineral bismuth and trace bismuth in metal by hydride atomic absorption spectrometry with a double capillary tube nebulizer is a simple, sensitive and rapid method. The method does not require any special equipment, no inert gas and very good repeatability. Compared with the literature of hydride method, the proposed method has less interference. In this paper, the effects of acidity, potassium borohydride and other parameters are studied in detail. The effects of various coexisting elements are also tested in detail. A method of overcoming copper interference is proposed. In this paper, the analytical method of trace bismuth in mineral rock is proposed. From the results obtained, the method is feasible.