BAO Hong-wei,CHEN Chun-lin,LI Yan,ZHANG Xu(Faculty of Materials and Metallurgical Engineering,Kunming University of Science and Technology,Kunming 650093,Yunnan Province,China)
(Faculty of Materials and Metallurgical Engineering,Kunming University of Science and Technology,Kunming 650093,Yunnan Province,China
Abstract��
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 spetrophotometric 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.
2009, Vol. 26 
