| 用离子交换/ICP-AES联用技术研究溶液中配合铝的形态及分布 |
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| 引用本文： | 陈捷,吴一微,胡斌,江祖成.用离子交换/ICP-AES联用技术研究溶液中配合铝的形态及分布[J].高等学校化学学报,2003,24(6):1000-1004. |
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| 作者姓名： | 陈捷 吴一微 胡斌 江祖成 |
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| 作者单位： | 武汉大学化学系, 武汉 430072 |
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| 摘 要： | 以阳离子交换微柱分离与ICP-AES检测联用技术为分离/检测手段,系统地研究了不同配体配合物体系中铝的形态及其分布.当pH=6.0时,溶液中非稳定态单核铝被微柱所保留,而稳定态配合铝直接从微柱中流出.所选择的研究体系分别为:Al-氟化物(Al-Fluoride),Al-磷酸盐(Al-Phosphate),Al-柠檬酸盐(Al-Citrate),Al-草酸盐(Al-Oxalate)及Al-EDTA.在确定的pH值条件下,研究了不同的摩尔比n(Al)/n(配合剂)]对铝的形态分布的影响,得到了一些对实际应用有指导意义的规律性结论.
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| 关 键 词： | 低分子量配合铝 形态分析 阳离子交换微柱 ICP-AES |
| 文章编号： | 0251-0790(2003)06-1000-05 |
| 收稿时间： | 2002-06-19 |
Studies on Distribution of Al Species Using Ion-exchange Microcolumn Combined with ICP-AES |
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| CHEN Jie,WU Yi-Wei,HU Bin,JIANG Zu-Cheng.Studies on Distribution of Al Species Using Ion-exchange Microcolumn Combined with ICP-AES[J].Chemical Research In Chinese Universities,2003,24(6):1000-1004. |
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| Authors: | CHEN Jie WU Yi-Wei HU Bin JIANG Zu-Cheng |
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| Institution: | Department of Chemistry, Wuhan University, Wuhan 430072, China |
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| Abstract: | The distributions of Al species in different Al-ligands solutions were studied systematically by using a microcolumn packed with weakly acidic cation-exchange resins coupled with ICP-AES. At pH=6\^0, all labile monomeric Al species were retained on the microcolumn while non-labile monomeric Al species were directly passed through the column. The Al-ligands systems studied include Al-fluoride, Al-phosphate, Al-citrate, Al-oxalate and Al-EDTA. The effects of different Al-to-ligand molar ratios on the speciation were studied at a certain pH value, and some practised rules were obtained. |
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| Keywords: | LMW-Al Speciation Cation-exchange microcolumn ICP-AES |
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