Characterzation and separation of Al_(13) species using gel-filtration chromatography

作     者：CHU Yongbao1,2, GAO Baoyu1, YUE Qinyan1, WANG Yan1 & WANG Shuguang1 1. School of Environmental Science and Engineering, Shandong University, Jinan 250100, China 2. College of Material and Environment, Qingdao University of Science and Technology, Qingdao 266042, China 

作者机构：School of Environmental Science and Engineering Shandong University Jinan China College of Material and Environment Qingdao University of Science and Technology Qingdao China 

出 版 物：《Science China Chemistry》 (中国科学（化学英文版）)

年 卷 期：2006年第49卷第4期

页      面：326-331页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070302[理学-分析化学] 0703[理学-化学] 

基　　金：This work was supported by the subproject of '863' Project of China (Grant No. 2002AA601290-5) the Natural Science Foundation of Shandong Province(Grant No. Y2002B03) 

主　　题：Al13 species, column chromatography, polyaluminum chloride (PAC), separation and purification. 

摘      要：A polyaluminum chloride (PAC) sample was prepared using a slow alkalinetitration method. The Bio-Gel P-100 gel column chromatographic technique was used to separate andcharacterize the various forms of aluminum present in the prepared PAC solution. The effluents froma gel column were monitored using online chemical method: AI-Ferron timed complexationspectropho-tometry and by ^(27)Al nuclear magnetic resonance (NMR) spectroscopy. Effects ofdifferent experimental conditions such as eluent flow rate, ionic strength and pH on separation ofAl_(13) were investigated. Experimental results indicated that molecule size exclusion was not theonly parameter affecting the column chromatographic separation efficiency of Al_(13) but moleculecharge as well. Reducing the eluent flow rate, increasing the ionic strength and suitable pHresulted in increase in the separation efficiency. Experimental results clearly indicated that byvarying the experimental conditions, it is possible to produce pure Al_(13) species using a gelcolumn chromatographic technique.