首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Determination of trace elements by neutron activation analysis using dinonylnaphthalene sulfonic acid as a preconcentrating agent
Authors:M H Yang  P Y Chen  C L Tseng  S J Yeh  P S Weng
Institution:1. Institute of Nuclear Science, National Tsing Hwa University, 300, Hsinchu, Taiwan Republic of China
Abstract:Dinonylnaphthalene sulfonic acid (HD) has been used as a preconcentrating agent to enrich trace metal ions and to separate the interfering elements such as Na, K, Cl and Br which normally exist in the natural aqueous systems. Experiments were performed by extracting the ions in the aqueous medium with HD in n-hexane and subsequently back-extracted into a minimal volume of acid solution. Factors influencing the extraction efficiency of the ions of interest were investigated. The preconcentration technique developed in this study was applied to the determination of trace elements in biological and natural water samples by neutron activation analysis.
Keywords:
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号