质谱学报
質譜學報
질보학보
2005年
z1期
99-100
,共2页
韦冠一%翟利华%张子斌%王长海%李雪松%万可友
韋冠一%翟利華%張子斌%王長海%李雪鬆%萬可友
위관일%적리화%장자빈%왕장해%리설송%만가우
ion-optics%simulation%abundance sensitivity%mass spectrometer
The simulation results of MAT-261 type ion source and ion optics with the SIMION 3D 7.0 software were given. By means of simulation, the ion's trajectory was studied, the cause of low abundance sensitivity was analyzed and the optimal poles' voltage ranges of the ion optics were found. Modifications were made to the LRIMS3000 type mass spectrometer according to result of the simulation. The abundance sensitivity of the mass spectrometer is improved to 2×10-6 from original 5×10-5.
