摘要
提出了以磷钼酸铵-孔雀绿-PVA三元络合物体系测定金属钽粉中磷的方法．该体系表观摩尔吸光系数ε=8．19×10^4L·mol^-1·cm^-1，加标回收率为：99．3％～105％，方法的RSD为：5．9％。有效地解决了目前高纯钽粉中磷的分析难题，方法已应用于实际产品的分析中。
A method for the determination of Phosphorus in tantalum powder with PMA-malachite green- PVA spectrophotometry is developed. The determination conditions, precision, accuracy and disturbing factors are discussed in this paper. The RSD is 5.9%, recovery is between 99.3% and 105% . It＇s an ideal method for determining trace phosphorus in tantalum.
出处
《分析试验室》
CAS
CSCD
北大核心
2006年第9期96-98,共3页
Chinese Journal of Analysis Laboratory
关键词
磷
钽粉
光度法
孔雀绿-PVA
Phosphorus
Spectrophotometry
Ion association complex
Tantalum-powder
Malachite green - PVA
