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化学学报
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化学学报 ›› 1989, Vol. 47 ›› Issue (2): 133-140. 上一篇    下一篇

研究论文

若干天然糖苷类的快原子轰击质谱及快原子轰击碰撞活化质量分析离子动能谱研究

梁伟升;芦苓;彭嘉柔;吴志儒   

  1. 北京医科大学分析计算中心
  • 发布日期:1989-02-15

Study on FAB-MS and FAB-CA-MIKES of glycosides from chinese herbal medicine

LIANG WEISHENG;LU LING;PENG JIAROU;WU ZHIRU   

  • Published:1989-02-15

PDF

743

被引次数

5

糖苷类化合物因为极性大和热不稳定而难以用通常的电子轰击电离质谱进行结构测定. 我们用FAB-MS和FAB-CA-MIKES对这类化合物进行了结构研究, 不仅获得了准确的分子量和苷元碎片, 还获得了糖的序列以及糖本身的裂解途径等重要结构信息.

关键词: 中草药, 分子量, 分子结构, 质谱法, 糖苷, 活化, 质量分析, 电子轰击

The glycosides from the traditional Chinese medicine, e.g., digitoxin, glycyrrhizin, and rutin, were studied by the fast atom bombardment mass spectrometry (FAB-MS) and FAB-CA-MIKES. It was found that the accurate mol. wt. and the sequence of their sugars moieties could be obtained directly by FAB-MS and FAB-CA-MIKES. Some useful fragmentation rules of the sugars in the glycosides were reported.

Key words: TRADITIONAL CHINESE MEDICINAL HERBS, MOLECULAR WEIGHT, MOLECULAR STRUCTURE, MASS SPECTROGRAPHY, GLYCOSIDE, ACTIVATION, QUALITY ANALYSIS, ELECTRON BOMBARDMENT

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