Citation: YAO Ru-Jiao, DING Zheng-Zhi, JING Jia-Rong, QI Xiao-Jun, ZHU Yong-Yong, PANG Jun-De, JIANG Gong-Yu, XIAO Yu. Self-repairing Performance of An Octa-electrode Linear Ion Trap: A Simulation Study[J]. Chinese Journal of Analytical Chemistry, ;2020, 48(4): 463-472. doi: 10.19756/j.issn.0253-3820.191610 shu

Self-repairing Performance of An Octa-electrode Linear Ion Trap: A Simulation Study

YAO Ru-Jiao ^1,2, ,
DING Zheng-Zhi ^1,2 ,
JING Jia-Rong ^1,2 ,
QI Xiao-Jun ^1,2 ,
ZHU Yong-Yong ^1,2 ,
PANG Jun-De ^1,2 ,
JIANG Gong-Yu ^1,2 ,
XIAO Yu ^1,2

1.
Institute of Spacecraft Equipment, Shanghai 200240, China;
2.
Shanghai Yuda Industrial Limited Company, Shanghai 200240, China

Received Date: 16 October 2019
Revised Date: 24 December 2019

Fund Project: This work was supported by the National Natural Science Foundation of China (No. 11805129) and the Natural Science Foundation of Shanghai, China(No. 19ZR1478000).

The octa-electrode linear ion trap (OeLIT) can achieve a good mass analysis performance with a specific radio frequency (RF) voltage application. In this work, the influence of three types of electrode misregistration on mass analysis performance of OeLIT was simulated. The internal electric field distribution induced by electrode misregistration was modified by optimizing RF voltage difference δ, and the performance self-repairing was realized without any changes of ion trap structures. It was found that the performance degradation caused by ion electrode misregistration could be compensated only by adjusting δ values. Besides, the optimal mass resolution was 3622.7, which was comparable to that of OeLIT without electrode misregistration.
- Octa-electrode linear ion trap,
- Electrode misregistration,
- Self-repairing,
- Radio frequency voltage difference,
- Mass resolution
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