四极质谱中的离子-分子缔合反应Ⅰ.芳香酸及其衍生物的四极质谱

Ion—Molecule Assiciation Reactions in Quatrupole Mass Spectrometry Ⅰ.Quadrupole Mass Spectrometry of Aromatic Acids and Their Derivatives

用Finnigan MAT-4510型仪器,在进样方式为DEP的条件下,对六十种不同类型的芳香酸及其衍生物进行了质谱测定。发现在某些结构条件下,会生成[M+ArCO]^+和[M+Ar]^+等加合离子。详细探讨了发生这种离子-分子缔合反应的条件、规律和机理,阐述了离子-分了缔合反应的意义。

The mass spectra of sixty samples of aromatic acids and their derivatives with different types of structures were determined under DEP condition by using Finnigan-MAT 4510 model mass spectrometer. It is observed that the adduct ions such as [M+ArCO]^+ and [M+Ar]^+ were produced by some species. In this paper, the conditions, regularity and mechanism of the ion-molecule association reactions have been explored in detail, and the significance of the reaction is also described.