波谱学杂志 ›› 2015, Vol. 32 ›› Issue (4): 699-706.doi: 10.11938/cjmr20150415

• 综述评论 • 上一篇    下一篇

基质辅助 NMR 中色谱技术的研究进展

何保江1,徐秀娟1,杨伟平1,张文娟1,吴瑞3,黄少华2*,杨盈2,柏正武3*   

  1. 1. 中国烟草总公司 郑州烟草研究院,河南 郑州 450001
    2. 中国科学院 青岛生物能源与过程研究所,中国科学院生物基材料重点实验室,山东 青岛 266101
    3. 武汉工程大学 化学与环境工程学院,湖北 武汉 430073
  • 收稿日期:2014-12-17 修回日期:2015-10-23 出版日期:2015-12-05 发布日期:2015-12-05
  • 作者简介:何保江(1980-),男,河北人,工程师,主要从事烟草化学方面的工作. *通讯联系人:黄少华,电话: 0532-80662660, E-mail: huangsh@qibebt.ac.cn;柏正武,电话: 027-87195680, E-mail: zhengwu_bai@yahoo.com.
  • 基金资助:

    国家自然科学基金资助项目(21105108)

Progresses in Matrixed Chromatographic NMR

HE Bao-jiang1XU Xiu-juan1YANG Wei-ping1ZHANG Wen-juan1WU Rui3HUANG Shao-hua2*YANG Ying2BAI Zheng-wu3*   

  1. 1. Zhengzhou Tobacco Institute of CNTC, Zhengzhou 450001, China;
    2. Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China;
    3. School of Chemical and Environment Engineering, Wuhan Institute of Technology, Wuhan 430073, China

  • Received:2014-12-17 Revised:2015-10-23 Online:2015-12-05 Published:2015-12-05
  • About author:*Corresponding author: HUANG Shao-hua, Tel: +86-532-80662660; E-mail: huangsh@qibebt.ac.cn; BAI Zheng-wu, Tel: +86-27-87195680; E-mail: zhengwu_bai@yahoo.com.
  • Supported by:

    国家自然科学基金资助项目(21105108)

摘要:

被誉为“ NMR 中色谱技术”的二维扩散排序 NMR (DOSY)技术是检测混合物溶液中不同分子组分的一种有效手段.但是当面对自扩散系数差别较小的不同分子时, DOSY技术便无法对上述混合物进行基线分离. 在 NMR 魔角旋转转子或 NMR 样品管中添加一些色谱填料或高分子等基质(或称为虚拟“色谱固定相”)是一种行之有效的手段.这些虚拟“色谱固定相”与混合物组分发生相互作用并改变其自扩散系数,从而对混合物实现基线分离.该文综述了近年来基质辅助 NMR 中色谱技术的研究进展.

关键词: 二维扩散排序NMR(DOSY), 自扩散系数, 基质, NMR 中色谱技术

Abstract:

Diffusion ordered NMR spectroscopy (DOSY), sometimes also known as chromatographic NMR (CNMR), is a powerful tool for analyzing complex mixture. However, it is often difficult to distinguish components having similar molecular properties using only the diffusion characteristics. A practical way to solve this problem is adding some matrices, such as silica gel or polymers into magic angle spinning rotor or NMR tube, as the virtual stationary phase (VSP), to increase the difference in diffusion rate among different components. Matrix aided CNMR has been shown to have improved discriminating capability when analyzing complex mixtures. In this paper, recent progresses in the field of matrixed CNMR were reviewed.

Key words: DOSY, self-diffusion coefficient, matrix, chromatographic NMR

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