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%.
出处
《分析试验室》
CAS
CSCD
北大核心
2010年第1期68-71,共4页
Chinese Journal of Analysis Laboratory
关键词
钼蓝分光光度法
纯金
硅量
Molybdenum blue spectrophotometry
Pure Au
Silicon