活性炭富集-原子吸收法测定硫精矿浸取液中金

Determination of Gold in Sulfur Concentrate by Atomic Absorption Spectrometry with Activated Carbon Enrichment

硫精矿提金工艺中浸取液中金的含量较低,达不到原子吸收直接测定的浓度要求,需要将液态样品中的金进行富集。文章介绍了使用活性炭富集吸附-原子吸收法测定硫精矿浸取液中金的方法,该方法活性炭对金的吸附率达到99.63%以上,方法回收率99.0%~102.3%,相对标准偏差2.74%,结果满意,有效解决了液相中金的测定问题。

Gold in the sulfur concentrate extract is low,which can not be directly measured on atomic absorption spectrophotometer. It is necessary to enrich the gold in the liquid sample. This paper describes the use of activated carbon enrichment adsorption-atomic absorption spectrometry method for the determination of gold concentrate leaching solution. The method of active carbon adsorption on gold rate reached above 99. 63%,the recovery rate was99. 0% ~ 102. 3% and relative standard deviation 2. 74%. The results were satisfactory,and solve the problem of liquid gold determination effectively.