麦芽寡糖的激光解吸傅里叶变换质谱
Laser desorption Fourier transform mass spectra of malto-oligosaccharides.
作者信息
Coates M L, Wilkins C L
出版信息
Biomed Mass Spectrom. 1985 Aug;12(8):424-8. doi: 10.1002/bms.1200120812.
PMID:2931133
Abstract
Laser desorption mass spectra of malto-oligomers, including starch, have been obtained using Fourier transform mass spectrometry. Fragmentations of these oligomers have been examined after doping with metal salts to obtain cation-attachment ions. Doping starch with NaCl, KBr and Ag2O results in analogous cation-attachment oligosaccharide fragment ions for all three metal ions. A distinct and unusual fragmentation pattern is observed for the larger oligomers.
摘要
利用傅里叶变换质谱法获得了包括淀粉在内的麦芽低聚糖的激光解吸质谱。在用金属盐掺杂以获得阳离子附着离子后，对这些低聚物的碎裂情况进行了研究。用氯化钠、溴化钾和氧化银掺杂淀粉，会产生针对所有三种金属离子的类似阳离子附着低聚糖碎片离子。对于较大的低聚物，观察到一种独特且不寻常的碎裂模式。
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