| 含酯糖链皂甙的负离子快原子轰击质谱分析 |
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| 引用本文： | 王淮滨,于德泉,梁晓天. 含酯糖链皂甙的负离子快原子轰击质谱分析[J]. 分析测试学报, 1990, 0(5) |
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| 作者姓名： | 王淮滨 于德泉 梁晓天 |
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| 作者单位： | 中国医学科学院药物研究所 北京(王淮滨，于德泉)，中国医学科学院药物研究所 北京(梁晓天) |
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| 摘 要： | 本实验用负离子快原子轰击(FAB)法测定了8个含酯糖链的双糖链皂甙样品,给出了明显的脱质子分子离子峰,由碎片离子峰可推测糖基的连接顺序;不仅对难挥发、热不稳定和极性大的样品可直接进样分析,而且对在酯糖链皂甙中出现以酯裂解为基峰的碎片,还可初步确定糖链在甙元上的连接位置。
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| 关 键 词： | 快原子轰击质谱 皂甙 |
Negative Ion FAB Mass Spectrometric Analysis of Ester-glycoside Saponins |
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| Wang Huaibin,Yu Dequan,Liang Xiaotian Institute of Materia Medica,Chinese Academy of Medical Sciences,Beijing. Negative Ion FAB Mass Spectrometric Analysis of Ester-glycoside Saponins[J]. Journal of Instrumental Analysis, 1990, 0(5) |
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| Authors: | Wang Huaibin Yu Dequan Liang Xiaotian Institute of Materia Medica Chinese Academy of Medical Sciences Beijing |
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| Affiliation: | Wang Huaibin,Yu Dequan,Liang Xiaotian Institute of Materia Medica,Chinese Academy of Medical Sciences,Beijing 100050 |
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| Abstract: | Samples of Eight bisdesm?sides containing ester-glycoside linkages were measured by negativeion FAB mass spectrometry. The mass spectra showed clear peaks of deprotonated molecu1ar ions[M-H]~-, and the sequence of sugars moieties could be deduced by fragment ions peaks. This tech-nique is suited to the analysis of involatile, thermolabile and polar samples, and the resulting ionsof the ester cleavage for ester-glycoside saponins were the base peaks of the spectra, which offerthe linkage infomation of sugar chains in the saponins. |
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| Keywords: | Negative ion FAB-MS Saponin |
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