| 硅胶整体柱的制备及制备条件对整体柱的影响 |
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| 引用本文： | 高文惠,杨静,杨更亮,胡汉芳,刘海燕.硅胶整体柱的制备及制备条件对整体柱的影响[J].化学通报,2004,67(3):214-217. |
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| 作者姓名： | 高文惠 杨静 杨更亮 胡汉芳 刘海燕 |
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| 作者单位： | [1]河北大学化学与环境科学学院，保定071002 [2]河北科技大学生物科学与工程学院，石家庄050018 |
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| 基金项目： | 国家自然科学基金 (2 0 0 75 0 0 5 )，河北省自然科学基金 (2 0 0 0 77)，科技部基金资助项目 |
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| 摘 要： | 研究了硅胶整体柱的制备工艺及温度、pH对凝胶化过程的影响，探讨了不同的四甲氧基硅烷／聚乙二醇比例、不同制也剂浓度对柱结构的影响，以及不同焙烧温度和酸活化处理方法对柱体Si0H含量和线性收缩率的影响，由此确定最佳制备条件。结果表明，采用改进的溶胶-凝胶工艺制备的硅胶整体柱，无开裂变形现象；不同制备条件，可以产生具有不同微米级鞍形骨架、微米级大孔和纳米级中孔的整体柱，可适合不同物质的分离和分析。
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| 关 键 词： | 硅胶整体柱 制备 溶胶-凝胶工艺 色谱柱 色谱分离 水浴温度 pH值 TMOS／PEG比例 制孔剂浓度 焙烧温度 活化条件 |
Preparation of Monolithic Silica Column and the Effect ofPreparative Conditions on Monolithic Column |
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| Gao Wenhui ,Yang Jing ,Yang Gengliang ,Hu Hanfang ,Liu Haiyan.Preparation of Monolithic Silica Column and the Effect ofPreparative Conditions on Monolithic Column[J].Chemistry,2004,67(3):214-217. |
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| Authors: | Gao Wenhui Yang Jing Yang Gengliang Hu Hanfang Liu Haiyan |
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| Institution: | Gao Wenhui 1,2,Yang Jing 1,Yang Gengliang 1,Hu Hanfang 1,Liu Haiyan 1 |
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| Abstract: | In this paper a new approach of preparing monolithic silica column was presented. The effect of pH value and temperature of water-bath in the process of gelation were investigated. The influence of different TMOS/PEG ratio and concentrations of porogenic diluent on monolithic silica column and the change of Si-OH content of monolithic column with roasting temperature were also discussed. The result shows that by adopting the improved sol-gel technology, the monolithic silica column do not crack and deform, and the columns possess both continuous through-pore and silica skeleton with appropriate open mesopore size in different preparation conditions, which can meet the needs of separation and analysis of different-molecular-mass solutes. |
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| Keywords: | Monolithic silica column Preparative condition Sol-gel technology |
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