化学
质谱法
电喷雾电离
溶剂化
离子阱
离子
四极
四极离子阱
分析化学(期刊)
离子键合
电喷雾
气相
离子液体
色谱法
物理化学
原子物理学
有机化学
催化作用
物理
作者
Xiaoji Cao,Yi Yu,Xueming Ye,Weiming Mo
摘要
In electrospray ionization (ESI) quadrupole ion trap mass spectrometry, certain fragment ions generated in the ion trap from a series of sulfonic group containing ionic liquids (ILs) are found to undergo ion-molecule reactions with ESI solvent molecules (water, acetonitrile and methanol) to form adduct species. These unexpected solvated fragment ions severely complicate the interpretation of mass spectrometric data. Multi-stage fragmentation mass spectra were used to ascertain the chemical structures of these adduct species. It is important that solvation must be taken into account in order to prevent erroneous data interpretation for sulfonic group containing ILs.
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