萃取、色层分离—DSPCF吸光光度法测定钽中铌  

ANALYSIS OF NIOBIUM IN THE PRESENCE OF TANTALUM BY EXTRACTION AND CHROMATOGRAPHIC FRACTIONATION——DSPCF SPECTROPHOTOMETRY

作　　者：陈青[1] 

机构地区：[1]北京有色冶金设计研究总院

出　　处：《河南科学》1998年第3期291-298,共8页Henan Science

摘　　要：提出了一种从钽和其它杂质中测定稀有元素铌的方法。采用显色剂为ＤＳＰＣＦ的吸光光度法，选用溶剂萃取和纸上色层分离两种手段结合的分离方法，并探讨了各种显色的条件，获得了精度较高的定量分析结果。One method which can be used in analyzing rare element Nb in the presence of Ta and other impurities is proposed in the paper. In fact, it is a spectrophotometric method, using DSPCF as developing agent, combining solvent extraction and chromatographic fractionation. The various developing conditions are studied in order to obtain high precision quantitative analysis results.

关 键 词：溶剂萃取 色层 铌 分离 钽 吸光光度法 DSPCF 

分 类 号：O614.512[理学—无机化学] O657.32[理学—化学]