苯氧乙酸化合物的质谱碎裂

On Fragmentation of Some Phenoxyacetic Acids by Mass Spectrometry

对12种苯氧乙酸化合物的电子轰击质谱进行了系统研究 ,总结了相应的碎裂规律 ,讨论了取代基的影响 ,同时利用串联质谱的低能碰撞诱导解离 (CID)、联动扫描 (B2/E)和同位素标记技术研究了硝基苯氧乙酸异构体的主要碎片离子的单分子质谱碎裂 ,并对其形成过程进行了探讨。

Electron impact mass spectra are presented for 12 phenoxyacetic acids, the general rule of the fragmentations in these compounds and the effects of substituting groups have been discussed. In special, the formations of major fragment ions generated from nitrophenoxyacetic acid isomers were investigated on the basis of the collision _ induced dissociation(CID), linked scan(B2/E) and deuterium labeling techniques.