硫酸铜中微量砷的分析  

Analysis of Trace Arsenic in Copper Sulfate

作　　者：包红伟[1] 陈春林[1] 李艳[1] 张旭[1] 

机构地区：[1]昆明理工大学材料与冶金工程学院,云南昆明650093

出　　处：《化学工业与工程》2009年第2期155-157,共3页Chemical Industry and Engineering

摘　　要：研究了应用硫氰酸钾与铜离子加热反应生成硫氰酸亚铜沉淀而分离出硫酸铜中的基体铜,并用钼蓝分光光度法测定硫酸铜样品中微量砷的方法。试验结果表明相对标准偏差(RSD)小于3.6%。本方法所需设备与化学试剂较为常见,成本较低,操作上容易实现,而且测试过程中不会产生剧毒的砷化氢气体。The heating reaction of potassium thiocyanate and the ion of copper to produce copper thiocyanate precipitation, was used to isolate the matrix of copper, and molybdenum-blueness spetrophotometrie method was chosen to determine the trace arsenic in copper sulfate sample. The experimental results show the relative standard deviation（RSD） is less than 3.6% .The required reagents of this method is common,and the the cost is low, the operation is easy, and no poisonous hydrogen arsenide is produced in the experiment.

关 键 词：硫酸铜 基体沉淀 钼蓝法 微量砷 

分 类 号：O657.32[理学—分析化学]