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有色金属矿物及其精矿中微量锑的测定,一般采用孔雀绿-苯萃取光度法,此法灵敏度高、精密度好,但干扰元素多,分离手续繁,而且苯对人体有害。近年来有应用硼氢化钠还原发生氢化物-原子吸收法测定水质、土壤、农作物、岩石和硅酸盐中锑的报导。本法研究了氢化物-原子吸收法测定铅、锌、锡原矿和精矿以及黄铁矿、铁矿石中微量锑的诸条件,考察了上述矿物中常见的35种共存元素的影响。采用碘化钠预还原,以克服锑价态不同可能产生的影响。方法简便、快速、灵敏度、
Determination of trace antimony in non-ferrous minerals and their concentrates, generally using malachite green - benzene extraction spectrophotometry, this method has high sensitivity and good precision, but the interference of many elements, the separation of complex procedures, and benzene harmful to humans. In recent years there has been a report of hydride generation - atomic absorption spectrophotometry for the determination of antimony in water, soil, crops, rocks and silicates using sodium borohydride reduction. This law studied the conditions of determination of trace amounts of lead, zinc, tin ores and concentrates, as well as trace amounts of antimony in pyrite and iron ores by hydride generation - atomic absorption spectrometry, and investigated the influence of 35 kinds of common elements commonly found in these minerals. Pre-reduction with sodium iodide to overcome the possible impact of different valence states of antimony. The method is simple, fast, sensitive,