电喷雾质谱剖析多元醇葡糖苷的组成与结构  

Analysis of Polyol Glycosides by Electrospray Ionization Mass Spectrometry

作　　者：金欣[1] 赵淑芳[1] 

机构地区：[1]青岛科技大学化工学院,山东青岛266042

出　　处：《青岛科技大学学报（自然科学版）》2011年第6期635-640,共6页Journal of Qingdao University of Science and Technology:Natural Science Edition

基　　金：青岛科技大学引进人才基金资助项目(2006)

摘　　要：采用电喷雾质谱法(ESI-MS)分析了多元醇葡糖苷的组成与结构。在电喷雾质谱中,多元醇葡糖苷按照不同的糖基取代度被离子化:在负离子模式下,各组分主要以去质子离子[M-H]-的形式被观察到;在正离子模式下,多元醇葡糖苷中的各组分能够以质子化分子离子[M+H]+或阳离子加合物[M+NH4]+、[M+Na]+和[M+K]+的形式被检测到。研究结果表明,ESI-MS法可定性分析多元醇葡糖苷中单苷、二苷和多苷的分布情况,是一种快速分析强极性糖苷类混合物组成与结构的有效方法。The components and structures of polyol glycosides were analyzed by ESI-MS method.The polyol glycosides molecules were ionized according to their different number of glucose units.Individual components could be detected mainly as deprotonated ion -in negative-ion mode and as cationized ions ＋,＋,＋ or ＋ in positive-ion mode.The results show that ESI-MS can be used to analyze the distribution of polymerization degree of glucose units qualitatively and is a highly sensitive analysis technique for rapid detection of polar products such as glycosides.

关 键 词：电喷雾质谱 糖苷 多元醇 

分 类 号：O657.63[理学—分析化学]