Fragmentation study of two brassinolides by ion trap tandem mass spectrometry

• 来源期刊: 科学通报(英文版)
• 学科: 物理学
• 关键词: 高油菜素内酯 串联质谱法 离子阱 电喷雾质谱 光谱分裂 异构体 MSn ESI
• 年，卷（期）: 2010,（21）
• 所属期刊栏目: ARTICLES
• 页码范围: 2219-2224
• 页数: 6页
• 分类号: O463.2 S512.106.2
• 语种: 英文

摘要

The fragmentation pathways of two isomers of brassinosteroids,28-homobrassinolide(28-h-BL)and 28-epihomobrassinolide(28-eh-BL),have been investigated by tandem mass spectrometry(MSn,n=1,2,3,4)with the electrospray ionization(ESI) source.The ESI mass spectrometric fragmentation pathways of protonated 28-h-BL and 28-eh-BL were comprehensively elucidated,and the principles revealed in this investigation could potentially be used to identify and distinguish brassinosteroids and their isomers.