The study of atomic inner-shell ionization cross-sections by low-energy electron impact is significant in both theoretical researches and practical applications.
低能电子碰撞原子内壳层电离截面测量的研究在理论和实际应用方面都具有重要意义。
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。
The electron impact and field desorption mass spectra of 10 2,4-diamino-6-substituted quinazoline sulfonamides were investigated.
研究了10种2，4-二氨基-6-取代磺酰胺喹唑啉类药物的电子电离及场解吸质谱。
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。
A new electron impact storage ion source has been designed for time of flight mass spectrometers with a high mass resolving power and high sensitivity.
电子轰击存贮型脉冲离子源是为高分辨率、高灵敏度飞行时间质谱仪设计的新型离子源。
A method combining the relativistic multichannel theory with the multichannel quantum defect theory is presented to calculate electron impact excitation.
介绍了用相对论多通道理论结合量子亏损理论计算电子碰撞激发过程的方法。
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。
Using moderate resolution capabilities of a desk time-of-flight (TOF) instrument, the fragmentation regularity from electron impact mass spectra of vitexin was studied.
利用台式飞行时间质谱的中分辨本领，研究了牡荆素的电子轰击质谱的裂解规律，对裂解途径进行了完全的指认。
Electron impact-induced dissociation by hydrogen and its isotopic molecule will occur in edge plasma.
在边界等离子体中氢及其同位素分子与电子碰撞可以发生解离反应。
Mass spectra (MS) of cholesterol esters and halides were obtained by means of Electron Impact (EI), Field Desorption (FD) and Chemical Ionization (CI).
研究了胆甾醇酯类和胆甾醇卤代物的电子轰击电离（EI）、场解吸电离（FD）、化学电离（CI）的质谱。
The multichannel R-matrix code is employed to compute the collision strengths for electron-impact excitation of pentacid Mg ion.
考虑了内壳层电子激发的组态相互作用后，采用R矩阵方法计算了电子碰撞类锂碳离子的共振激发碰撞强度。
The multichannel R-matrix code is employed to compute the collision strengths for electron-impact excitation of pentacid Mg ion.
考虑了内壳层电子激发的组态相互作用后，采用R矩阵方法计算了电子碰撞类锂碳离子的共振激发碰撞强度。
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