使用阳离子交换树脂从某些重金属的合成二元混合物中进行色谱分离并回收铅离子。
Chromatographic separations and recovery of lead ions from a synthetic binary mixtures of some heavy metal using cation exchange resin.
作者信息
Badawy N A, El-Bayaa A A, Abdel-Aal A Y, Garamon S E
机构信息
Chemistry Department, Faculty of Science, Al-Azhar University (Girls), Nasr City, Cairo, Egypt.
出版信息
J Hazard Mater. 2009 Jul 30;166(2-3):1266-71. doi: 10.1016/j.jhazmat.2008.12.044. Epub 2008 Dec 11.
A simple solid phase extraction procedure on cation exchange resin Purolite C100 is presented. The procedure based on a column technique for separation and recovery of lead ions from synthetic binary mixtures. Equilibrium distribution coefficient, k(d) for the different metal ions such as Al(III), Fe(III), Ba(II) and Pb(II) in the presence of nitric acid and ammonium acetate solutions of variable concentrations was determined at 25 degrees C. The values of separation factor, alpha were evaluated. Quantitative separation of lead ions from a synthetic binary mixtures are based on the fact that ammonium acetate is a good elute for lead ions but fails to elute the other cations.
介绍了一种在阳离子交换树脂Purolite C100上进行的简单固相萃取方法。该方法基于柱技术，用于从合成二元混合物中分离和回收铅离子。在25℃下，测定了不同金属离子如Al(III)、Fe(III)、Ba(II)和Pb(II)在不同浓度硝酸和醋酸铵溶液存在下的平衡分配系数k(d)。评估了分离因子α的值。从合成二元混合物中定量分离铅离子是基于醋酸铵是铅离子的良好洗脱剂，但不能洗脱其他阳离子这一事实。
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