摘要
用双(2,4,4-三甲基戊基)膦酸-Span 80-甲苯乳状液膜体系研究了汞的迁移行为,确定了用此种乳状液膜迁移分离汞的适宜条件,汞在5min内可迁移96％以上。在同样条件下,一些常见过渡金属离于如Co^(2+)、Ni^(2+)、Cu^(2+)、Cd^(2+)等通过此乳状液膜的迁移率很低,因此汞可与这些元素得到很好的分离。
The transport of Hg( Ⅱ ) through the emulsion liquid membrane of bis (2,4, 4-trimethylpentyl)phosphonic acid-Span 80-toluene that transporting Hg( Ⅱ) completely and rapidly was carried out under optimal experimental conditions. The transport rate in 5 min is 96%. In this case, many co-existed ions, such as Co?Ni?Cu?Cd?Pb etc. can not transport through this emulsion liquid membrane. So Hg( Ⅱ ) can be separated from these ions satisfactorily.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1994年第11期1151-1154,共4页
Chinese Journal of Analytical Chemistry
基金
国家自然科学基金资助课题
关键词
乳状液膜
膦酸
迁移
分离
汞
Emulsion Liquid Membrane
Bis (2
4
4-trimethylpentyl ) phosphonic acid
Transport
Separation
Mercury( II ).
