磁质谱分析系统的研究

磁质谱分析系统的研究 A STUDY ON THE MAGNETIE MASS SPECTRUM ANALYSIS SYSTEM 郭玉华 Guo Yuhua 1 first-author 黄良安 Huang Liang’an 1 武汉大学物理学系,武汉,430072 武汉大学物理学系,武汉,430072 Department of Physics,Wuhan University Department of Physics,Wuhan University 磁质谱分析是利用不同质荷比的离子在磁场中作不同的偏转来分析物质的,它是现代科学中用于分离或提纯物质的重要手段。文从质谱仪的基本方程出发,分析了影响质量分辨率的因素和两种主要像差产生的原因,及其校正措施,从而提高了质谱仪的测量精度。 The mass spectroscope,based on the principle that the path of the ions in a magnetic field differs with their charge-to-mass ratio, is an important modern technique in separating and purifying substances. This paper, starting from the fundamental equations of massspectroscopy, discusses the factors which influence the mass resolution and the cause for two main image distortions. A measure of optimizing the precision of the spectrometer is presented. 质谱仪 分辨率 像差 mass spectroscope resolution image distortion TL817.5 1996-03-01 2021-04-01 3