钼蓝分光光度法测定纯金中的硅  

Determination of silicon content in pure Au by molybdenum blue spectrophotometry

作　　者：杨萍[1] 陈云红[1] 

机构地区：[1]北京有色金属研究总院,北京100088

出　　处：《分析试验室》2010年第1期68-71,共4页Chinese Journal of Analysis Laboratory

摘　　要：建立了钼蓝分光光度法测定纯金中硅量的方法。确定了基体的分离方法、分离条件、还原剂及其用量;考察了酸度,试剂等对测定的影响。在优化条件下对3个合成试样进行了测定,RSD〈10%。方法的回收率在97%～122%之间,满足测定的要求。方法适用于0.001%～0.005%的硅量的测定。A method for the determination of silicon content in pure Au by molybdenum blue spectrophotometry is reported in this article.Separation method,separation conditions of matrix,reductant and its amount are chosen;the effects of reagent and inorganic acid,etc,on the determination are tested.With optimized conditions of molybdenum blue spectrophotometric apparatus,three samples are determined.The RSD of this method is less than 10%,and the recoveries range from 97% to 122%.Determination ranges from 0.001% to 0.005%.

关 键 词：钼蓝分光光度法 纯金 硅量 

分 类 号：O657.3[理学—分析化学]