碰撞活化光谱在立体异构全甲基化二糖鉴别中的应用
The use of collisional activation spectra in the discrimination of stereoisomeric permethylated disaccharides.
作者信息
de Jong E G, Heerma W, Dijkstra G
出版信息
Biomed Mass Spectrom. 1980 Mar;7(3):127-31. doi: 10.1002/bms.1200070308.
Collisional activation spectra of quasimolecular ions generated by chemical ionization can be used for the discrimination of stereoisomeric permethylated disaccharides. The best results have been obtained by using ammonia and trimethylamine as reagent gases. In the case of trimethylamine the presence of water seems to play an important role in order to obtain distinctive collisional activation spectra. The structural information obtained with the chemical ionization gases mentioned is complementary. A flow chart is presented for the identification of an unknown permethylated disaccharide.
化学电离产生的准分子离子的碰撞活化光谱可用于鉴别立体异构的全甲基化二糖。使用氨和三甲胺作为反应气可获得最佳结果。在三甲胺的情况下，水的存在似乎对获得独特的碰撞活化光谱起着重要作用。用上述化学电离气体获得的结构信息是互补的。给出了一个用于鉴定未知全甲基化二糖的流程图。
Zotero 插件