电感耦合等离子体发射光谱法测定高锑电解液中金的含量方法研究  

Determination of Gold in the High Content about Antimony Electrolyte by Inductively Coupled Plasma Emission Spectrometry

作　　者：张彦翠[1] 王源瑞 杨扬 齐艳妮[1] ZHANG Yan-cui;WANG Yuan-rui;YANG Yang;QI Yan-ni(Northwest Research Institute of Mining&Metallurgy,Baiyin 730900,China)

机构地区：[1]西北矿冶研究院,甘肃白银730900

出　　处：《甘肃冶金》2022年第4期50-52,共3页Gansu Metallurgy

摘　　要：本文采用稀盐酸溶液调节待测样品酸度为0.5~1 mol/L,样品溶液中的锑以硫化物的形式沉淀,贵金属Au(Ⅲ)被还原为单质金从而吸附包裹在硫化锑沉淀中,过滤沉淀;将沉淀连同滤纸放入原烧杯中,加入浓硫酸对沉淀进行加热处理,使得硫化锑以硫酸锑形式存在于溶液中,而单体金不溶解,再次过滤,保留沉淀;将滤纸同沉淀一起消化处理,王水溶解盐类,定容,ICP-AES进行测定金含量。该方法避免了锑基体的干扰和匹配,在分析时间和成本上有很大程度的节约,对该方法进行了检出限、精密度和加标回收试验,其中金的检出限为0.013 ug/mL,精密度达到0.79%,加标回收率达到97%~101%,该方法简便、快速、准确。In this paper, dilute hydrochloric acid solution was used to adjust about 0.5 ~ 1 mol/L the acidity of the sample. The antimony of the sample solution was precipitated in the form of sulfide, and the precious metal Au(Ⅲ) was reduced to elemental gold, which was adsorbed and wrapped in the antimony sulfide precipitate and filtered about precipitate. Put the precipitation together with filter paper into the original beaker, add concentrated sulfuric acid to heat the precipitation, so that antimony sulfide exists in the solution in the form of antimony sulfate, and the monomer gold is insoluble, filtered again, retain the precipitation;the filter paper was digested with precipitation, the salt was dissolved in aqua regia, and the content of gold was determined by ICP-AES. The method can avoid the interference and matching of antimony matrix, and greatly save the analysis time and cost. The detection limit, precision and standard recovery tests of this method are carried out, in which the detection limit of gold is 0.013 ug/mL, the precision 0.79%, and the standard recovery 97%~101%. The method is simple, rapid and accurate.

关 键 词：锑电解液 金 分离富集 电感耦合等离子体原子发射光谱法 

分 类 号：TF801.3[冶金工程—有色金属冶金]