高分辨飞行时间质谱中的离子延时引出方法与实验

Experiments on Delayed Ion Extraction Technique in Laser Desorption Time-of-flight Mass Spectrometric Analysis

摘要: 为了提高激光解吸飞行时间质谱仪的分辨率，在自行研制的激光解吸飞行时间质谱仪上进行了离子延时引出新技术的探讨与实验，比较了不同的脉冲引出方式，在线性方式下得到了分辨率超过１０００的质谱图。

Abstract: In order to improve the resolution of laser desorption timeofflight mass spectrometer, experiments on a new delayed ion extraction technique were carried out on a laboratorybuiltup laser desorption timeofflight mass spectrometer. Different pulsed ion extr