| 痕量完整天然寡糖链的液态二次离子质谱测定 |
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| 引用本文： | 蒋可,A.L.Burlingame.痕量完整天然寡糖链的液态二次离子质谱测定[J].分析测试学报,1992(4). |
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| 作者姓名： | 蒋可 A.L.Burlingame |
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| 作者单位： | 中国科学院生态环境研究中心，加州大学旧金山分校 北京，100085，美国 |
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| 摘 要： | 痕量、未衍生、完整的天然寡糖可用质谱法直接获得重要的结构信息。用负离子LSIMS测出了n mol级IgM中的高甘露糖型和杂交型糖链分子量及序列。对麦芽七糖、异麦芽七糖、古洛糖醛酸十聚体及若干天然寡糖谱图中碎片离子进行了研究,从糖链混合物的质谱图中也能分析出有用的分子结构。
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| 关 键 词： | 寡糖结构 质谱 IgM精蛋白 |
Analysis of Trace Amount Free Intact Oligosaccharides by Liquid Secondary Ion Mass Spetrometry |
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| K.Jiang,A.L.Burlingame Research Centre for Eco-Environmental Sciences,Academia Sinica, University of California,San Francisco U.S.A.Analysis of Trace Amount Free Intact Oligosaccharides by Liquid Secondary Ion Mass Spetrometry[J].Journal of Instrumental Analysis,1992(4). |
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| Authors: | KJiang ALBurlingame Research Centre for Eco-Environmental Sciences Academia Sinica University of California San Francisco USA |
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| Institution: | K.Jiang,A.L.Burlingame Research Centre for Eco-Environmental Sciences,Academia Sinica,100085 University of California,San Francisco U.S.A |
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| Abstract: | Important structural informations can be obtained directly by LSIMS(liquid secondary ionmass spectrometry)analysis of trace amount of free intact oligosaccharides. The molecular weigh-ts and sugar sequences of oligosaccharides could be detceted by negative ion LSIMS in nmolIgM. Fragments of mass spectra of maltoheptaose, isomaltoheptaose, galacturonic acid oligomersand guluronic acid oligomers are also studied. |
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| Keywords: | Oligosacchavide LSIMS IgM |
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