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锌精矿中的铟的测定已有分析工作者进行多方面的研究和探讨,并取得成效,对于微量铟的分析,常用方法是原子吸收光谱法、风光广度法、示波极谱法等多种测定方法,原子吸收方法要求精密的仪器和较高工作条件,风光光度法要求富集,之前的示波极谱法多是采用多次分离杂质元素,过程复杂。本文尝试不用沉淀分离,在1M碱性溶液中,在-0.91至-0.95伏处作导数极谱波,获得较好的效果,方法简单,易于操作,方法有较好的准确度和精密度。
Determination of indium in zinc concentrate has been analyzed in many aspects of research workers and achieved results, and for the analysis of trace indium, commonly used method is atomic absorption spectrometry, scenery breadth, oscillopolarography and more Determination of species, atomic absorption method requires sophisticated equipment and high working conditions, photometric method requires enrichment, before the oscilloscope polarographic method is the use of multiple separation of impurity elements, the process is complicated. In this paper, we try to use precipitation without precipitation. The derivatization polarographic wave at -0.91 to -0.95 volts in 1 M alkaline solution gives good results. The method is simple and easy to operate, and the method has better accuracy and precision.