%0 Journal Article
%T The Enrichment of Trace Cadmium by Liquid Membrane and It''s Determination by Flame Atomic Absorption Spectrometry<br>液膜富集火焰原子吸收法测定水中痕量镉
%A Li Longquan
%A <br>李龙泉
%A 陈树榆
%A 吴纯德
%A 林淑钦
%A 李亚栋
%J 环境科学
%D 1994
%I 
%X In this paper, the selective preconcentration of trace of cadmium by liquid membrane is studied and the best conditions for enriching trace cadmium reported. The liquid membrane composed of span80-P204-kerosene-HCl is found to be more effective. The demulsification of the emulsion phase after extraction is carried. out by a heat demulsification technique. The emulsion swelling is examined. Cd2+ at×10-9 level can be enriched and determined by FAAS. A recovery of more than 97% and a enrichment of over 80-fold are obtained for Cd2+. The results was satisfied.
%K cadmium
%K liquid membrane
%K enrichment
%K atomic absorption spectrometry<br>镉，液膜，富集，火焰原子吸收法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=1CB81602707D42F255974B1811B79A86&yid=3EBE383EEA0A6494&iid=CA4FD0336C81A37A&sid=7E8E8B150580E4AB&eid=C753EB8AC8F551B9&journal_id=0250-3301&journal_name=环境科学&referenced_num=5&reference_num=0