Simulation of low-vacuum cylindrical ion trap mass spectrometry
Simulation of low-vacuum cylindrical ion trap mass spectrometry
复制标题
低真空圆柱形离子阱质谱模拟
DOI：
10.1080/10739149.2018.1465951
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发表时间：
2018-08
影响因子：
1.6
通讯作者：
ZHiquan Zhou
中科院分区：
文献类型：
--
作者：
Zhanfeng Zhao;Peihe Jiang;ZHiquan Zhou
摘要低真空质谱法（MS）是理想的，因为它减少了仪器的尺寸、重量、成本和功率。提出了一种利用朗之万碰撞理论模拟离子在低真空环境中运动轨迹的方法。在此基础上，利用COMSOL Multiphysics软件建立了圆柱形离子阱质谱仪的低真空模拟平台。与传统的阻尼力模型相比，该方法更准确地描述了离子的运动。对仪器在不同工作模式下的灵敏度和分辨率进行了模拟。采用小质量的背景气体、较高频率的射频电压、较小的离子阱尺寸和较高的温度允许在低真空下进行质量分析。此外，将结果应用于实验测量，并获得了良好的质谱的有机化合物的最大压力为2 Pa，显示了从模拟获得的结果的有效性。
Abstract Low-vacuum mass spectrometry (MS) is desirable because it reduces the size, weight, cost, and power of the instruments. A method was developed that uses Langevin collision theory to simulate the trajectory of ions in a low-vacuum environment. A low-vacuum simulation platform of cylindrical ion trap MS was then built in COMSOL Multiphysics based on this method. In comparison with the traditional damping force model, this approach described the motion of ions more accurately. The sensitivity and resolution of the instrument were simulated under different operating modes. The adoption of a small mass background gas, a higher frequency for the radio frequency voltage, a smaller ion trap size and a higher temperature allowed mass analysis to be conducted under low vacuum. In addition, the results were applied to experiment measurements, and excellent mass spectra of organic compounds were obtained up to a maximum pressure of 2 Pa, showing the effectiveness of the results obtained from the simulation.
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影响因子：
0.7
作者：
M. Nasse;C. Foot
通讯作者：
M. Nasse;C. Foot
DOI：
10.1016/1044-0305(92)87067-9
发表时间：
1992-05-01
影响因子：
3.2
作者：
DOUGLAS, DJ;FRENCH, JB
通讯作者：
FRENCH, JB
影响因子：
7.4
作者：
Gao, Liang;Song, Qingyu;Ouyang, Zheng
通讯作者：
Ouyang, Zheng
影响因子：
1.8
作者：
I. Ziaeian;H. Noshad
通讯作者：
I. Ziaeian;H. Noshad
影响因子：
7.4
作者：
GOERINGER, DE;WHITTEN, WB;GLISH, GL
通讯作者：
GLISH, GL