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应用高分辨质谱,准确质量测定和亚稳态离子的测定结果,对五个苯并-3-氮杂环庚酮-1衍生物及六个N-二烷氧基磷酰基-N-取代苯乙基甘氨酸衍生物的断键机理进行了研究。在EIMS条件下,前者的分子离子峰比后者强;N原子上发生电离的几率最大;除磷酰基上取代基为甲基的两个化合物外,其他九个化合物均含有m/z110(CH_5O_3NP)碎片离子;由于受磷酰基的影响,这些化合物都发生C—N键特征断裂。
Five high-resolution mass spectra, accurate mass measurements and metastable ion measurements were performed on five benzo-3-azacycloheptan-1 derivatives and six N-dialkoxyphosphoryl-N-substituted benzenes The cleavage mechanism of ethylglycine derivatives was studied. Under the condition of EIMS, the molecular ion peak of the former is stronger than the latter; the probability of ionization on the N atom is the highest; the other nine compounds except the two compounds whose phosphoryl on the phosphoryl group is methyl contain m / z110 (CH_5O_3NP ) Fragment ions; due to the influence of phosphoryl, these compounds all undergo C-N bond characterization.