建立了一种新型分离富集水溶液中痕量铅(Ⅱ)的方法——准液膜法,用P204迁移Pb2+离子,用H2SO4解吸Pb2+离子,迁移与解吸同步进行,在最佳液膜体系及操作条件下,铅的回收率可达90%以上,利用此方法可降低火焰原子吸收光谱法的下限。
In this paper,a new method of quasi-liguid membrane separating and enriching Pb(Ⅱ) was established. Using P204 to migrate Pb(Ⅱ) and H2SO4 to desorb Pb(Ⅱ) simultaneously,the recovery of Pb(Ⅱ) was more than 90% and the detection limit of Pb(Ⅱ) by FAAS can be decreased.
参考文献
[1] | 徐书绅;李永涛;田健 .[J].分析化学,1989,17(11):1028. |
[2] | 李永涛,徐书绅.液膜富集技术与分光光度法测定痕量稀土[J].中国稀土学报,1989(04):80. |
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