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本文研究了示波极谱测定有机相中的铼。采用在有机相样品中加浓氨水再覆盖氧化镁,置于简易的带有保温置的普通电炉上灼烧15分钟,以达到完全破坏有机相的目的,然后用水浸出,于亚硫酸钠底液中进行极谱测定。方法简易、快速、经济,分析结果稳定,精密度优于±5%,回收率94—104%,测定范围0.04—8微克铼/毫升,适用于例行分析。在适当延长灼烧时间后,方法亦可用于测定矿石、矿渣中的铼。
In this paper, oscillopolarographic determination of rhenium in the organic phase was investigated. Concentrated ammonia in the organic phase sample was then covered with magnesium oxide and placed in a simple insulated with a normal electric furnace for 15 minutes, in order to achieve the purpose of completely destroy the organic phase, and then leached with water, sodium sulfite in the bottom liquid Polarographic determination. The method is simple, rapid and economical, the analysis result is stable, the precision is better than ± 5%, the recovery rate is 94-104%, and the determination range is 0.04-8 microgram rhenium / ml, which is suitable for routine analysis. After the ignition time is extended properly, the method can also be used to determine rhenium in ore and slag.