It is unfavorable to study MS of aminoglycosides using electron impact ionization.
使用电子轰击离子化方法研究氨基糖甙类是不理想的。
Based on photoemission effect. we design a laser photoemission electron gun for electron impact ionization source of time of flight mass spectrometer.
基于光电效应原理。我们设计了一个新型脉冲激光光电子枪，它可以作为飞行时间质谱的电子碰撞电离的电离源。
Methods: Volatile oil was separated by solvent extraction and analysed by gas chromatography coupled with electron impact ionization-mass spectrometry (GC-MS).
方法：采用溶剂浸渍方法提取冬凌草中的挥发性成分，用GC -MS方法对冬凌草挥发油的化学成分进行分析。
A high reverse bias voltage creates a strong internal electric field, which accelerates the electrons through the silicon crystal lattice and produces secondary electrons by impact ionization.
一个高反向偏置电压产生一个强有力的内部电场，加速了通过硅晶格的电子，并通过碰撞电离产生二次电子。
Impact ionization arises from a charge injector (25), defining a virtual diode (30) in the substrate (20) of a floating gate charge storage transistor (11).
碰撞电离通过一在一浮栅电荷存储晶体管(11)的衬底(20)中限定一虚拟二极管(30)的电荷注入器(25)而产生。
Impact ionization arises from a charge injector (25), defining a virtual diode (30) in the substrate (20) of a floating gate charge storage transistor (11).
碰撞电离通过一在一浮栅电荷存储晶体管(11)的衬底(20)中限定一虚拟二极管(30)的电荷注入器(25)而产生。
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