| 测定木素磺酸盐和磺化碱木素相对分子质量分布的凝胶色谱法 |
| |
| 引用本文： | 李静,左雄军.测定木素磺酸盐和磺化碱木素相对分子质量分布的凝胶色谱法[J].分析测试学报,1999,18(5):47-49. |
| |
| 作者姓名： | 李静 左雄军 |
| |
| 作者单位： | 中国科学院广州化学研究所纤维素化学开放研究实验室,广州,510650 |
| |
| 基金项目： | 中国科学院广州分院测试基金 |
| |
| 摘 要： | 用水溶性流动相在Ultrahydrogel柱上测定了木素磺酸盐和磺化碱木素的相对分子质量及其分布。流动相的离子强度和 pH值对样品和标样的保留时间和峰面积都有显著的影响。根据色谱峰的位置、峰面积和样品的分离程度 ,确定以 pH=7.0的0.1mol/LNaNO3 溶液为适宜的流动相。
|
| 关 键 词： | 凝胶色谱 木素磺酸盐 相对分子质量 流动相 |
| 修稿时间： | 1998年12月11日 |
Determination of Relative Molecular Mass Distribution of Lignosulfonate and Sulfonated Soda Lignin by Aqueous GPC |
| |
| Li Jing,Zuo Xiongjun.Determination of Relative Molecular Mass Distribution of Lignosulfonate and Sulfonated Soda Lignin by Aqueous GPC[J].Journal of Instrumental Analysis,1999,18(5):47-49. |
| |
| Authors: | Li Jing Zuo Xiongjun |
| |
| Abstract: | The relative molecular masses and their distribution of lignosulfonate and sulfonated soda lignin samples were determined by aqueous gel permeation chromatography. It has been found that ionic strength and pH value of the mobile phases have significant influences on the flow behaviors of standard samples and lignin samples. A 0.1 mol/L NaNO3 solution with pH 7 was selected as the mobile phase in the experiment after the examination of peak area, retention time and resolution of chromatogram. An improved chromatographic resolution and decreased non _ size _ exclusion effect could be obtained. |
| |
| Keywords: | Gel permeation chromatography Lignosulfonate Relative molecular mass Mobile phase |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
