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利用离子—分子反应 ,不仅可以提供分子离子峰 ,而且可以提高检测的灵敏度 ,了解分子的结构特征。本文根据离子—分子反应的机理 ,介绍了金属离子的亲和力的测定方法和金属离子在化合物上的加合位点 ,并阐述了离子—分子反应在化学电离质谱 ( CI-MS)、碱金属离子化学电离质谱 ( ACI-MS)、电喷雾电离质谱 ( ESI-MS)、快原子轰击质谱 ( FAB-MS)、以及基质辅助激光解吸电离质谱 ( MALDI-MS)中的应用
The use of ion - molecular reaction, not only can provide molecular ion peaks, but also can improve the detection sensitivity and understanding of the structural characteristics of the molecule. In this paper, based on the mechanism of ion-molecule reaction, the method for determining the affinity of metal ions and the adduct sites of metal ions on the compounds were introduced. The effects of ion-molecule reactions on chemical ionization mass spectrometry (CI-MS), alkali metal ions Application in Chemical Ionization Mass Spectrometry (ACI-MS), Electrospray Ionization Mass Spectrometry (ESI-MS), Fast Atom Bombardment Mass Spectrometry (FAB-MS), and Matrix Assisted Laser Desorption Ionization Mass Spectrometry