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Title: Stimulated Motion Suppression (STMS): a New Approach to Break the Resolution Barrier for Ion Trap Mass Spectrometry

Abstract

Ion trap is an excellent platform to perform tandem mass spectrometry (MS/MS), but has an intrinsic drawback in resolving power. Using ion resonant ejection as an example, the resolution degradation can be largely attributed to the broadening of the resonant frequency band (RFB) between ion motion and driving alternative-current (AC). To solve this problem, stimulated motion suppression (STMS) was developed. The key idea of STMS is the use of two suppression alternative-current (SAC) signals, which both have reversed initial phases to the main AC. The SACs can block the unexpected sideband ion resonances (or ejections), therefore playing a key role in sharpening the RFB. The proof-of-concept has been demonstrated through ion trajectory simulations and validated experimentally. STMS provides a new and versatile means for the improvement of the ion trap resolution, which for a long time has reached the bottleneck through conventional methods, e.g., increasing the radio-frequency (RF) voltage and decreasing the mass scan rate. At the end, it is worth noting that the idea of STMS is very general and principally can be applied in any RF device for the purposes of high-resolution mass analysis and ion isolation. .

Authors:
; ; ; ; ;  [1]
  1. Tsinghua University, State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument (China)
Publication Date:
OSTI Identifier:
22776866
Resource Type:
Journal Article
Journal Name:
Journal of the American Society for Mass Spectrometry
Additional Journal Information:
Journal Volume: 29; Journal Issue: 8; Other Information: Copyright (c) 2018 American Society for Mass Spectrometry; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1044-0305
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; DIFFUSION BARRIERS; EQUIPMENT; MASS SPECTROSCOPY; RADIOWAVE RADIATION; RESONANCE; SCANNING TUNNELING MICROSCOPY; SIMULATION; TRAPS

Citation Formats

Zhou, Xiaoyu, Liu, Xinwei, Chiang, Spencer, Cao, Wenbo, Li, Ming, and Ouyang, Zheng. Stimulated Motion Suppression (STMS): a New Approach to Break the Resolution Barrier for Ion Trap Mass Spectrometry. United States: N. p., 2018. Web. doi:10.1007/S13361-018-1995-X.
Zhou, Xiaoyu, Liu, Xinwei, Chiang, Spencer, Cao, Wenbo, Li, Ming, & Ouyang, Zheng. Stimulated Motion Suppression (STMS): a New Approach to Break the Resolution Barrier for Ion Trap Mass Spectrometry. United States. https://doi.org/10.1007/S13361-018-1995-X
Zhou, Xiaoyu, Liu, Xinwei, Chiang, Spencer, Cao, Wenbo, Li, Ming, and Ouyang, Zheng. Wed . "Stimulated Motion Suppression (STMS): a New Approach to Break the Resolution Barrier for Ion Trap Mass Spectrometry". United States. https://doi.org/10.1007/S13361-018-1995-X.
@article{osti_22776866,
title = {Stimulated Motion Suppression (STMS): a New Approach to Break the Resolution Barrier for Ion Trap Mass Spectrometry},
author = {Zhou, Xiaoyu and Liu, Xinwei and Chiang, Spencer and Cao, Wenbo and Li, Ming and Ouyang, Zheng},
abstractNote = {Ion trap is an excellent platform to perform tandem mass spectrometry (MS/MS), but has an intrinsic drawback in resolving power. Using ion resonant ejection as an example, the resolution degradation can be largely attributed to the broadening of the resonant frequency band (RFB) between ion motion and driving alternative-current (AC). To solve this problem, stimulated motion suppression (STMS) was developed. The key idea of STMS is the use of two suppression alternative-current (SAC) signals, which both have reversed initial phases to the main AC. The SACs can block the unexpected sideband ion resonances (or ejections), therefore playing a key role in sharpening the RFB. The proof-of-concept has been demonstrated through ion trajectory simulations and validated experimentally. STMS provides a new and versatile means for the improvement of the ion trap resolution, which for a long time has reached the bottleneck through conventional methods, e.g., increasing the radio-frequency (RF) voltage and decreasing the mass scan rate. At the end, it is worth noting that the idea of STMS is very general and principally can be applied in any RF device for the purposes of high-resolution mass analysis and ion isolation. .},
doi = {10.1007/S13361-018-1995-X},
url = {https://www.osti.gov/biblio/22776866}, journal = {Journal of the American Society for Mass Spectrometry},
issn = {1044-0305},
number = 8,
volume = 29,
place = {United States},
year = {2018},
month = {8}
}