Effects of kinetic energy and collision gas on measurement of cross sections by Fourier transform ion cyclotron resonance mass spectrometry
文献类型：期刊论文
| 作者 | Yang, Fan1,2; Jones, Chad A.1; Dearden, David V.1 |
| 刊名 | international journal of mass spectrometry
 |
| 出版日期 | 2015-02-15 |
| 卷号 | 378页码:143-150 |
| 关键词 | Collision cross section Calibration Kinetic energy Fourier transform ion cyclotron resonance mass spectrometry |
| 英文摘要 | cross sections for removal of ions, under pressure-limited conditions, from the coherently orbiting ion packet in a fourier transform ion cyclotron resonance (fticr) mass spectrometer can be measured by analysis of the fticr line width as a function of collision gas pressure. we show that the fticr pressure-limited line width is proportional to the square root of the collision kinetic energy (i.e., directly proportional to the ion velocity) in the center-of-mass reference frame. cross sections increase with kinetic energy until they approach a high-energy limit, suggesting that collision-induced dissociation contributes significantly to ion dephasing. as the collision gas is varied, the cross sections are inversely proportional to the reduced mass of the collision system, and are also weakly sensitive to the physical size of the neutral collision gas. we show that n-2, ar, and sf6 are all suitable collision gases for these experiments. analytical discrimination (the ability to detect small differences in cross sections) is greatest for the lighter collision gases, but the ease of reaching high kinetic energies in the center-of-mass reference frame increases with collision gas mass. under the conditions of our instrument and experiments, ar is the preferred collision gas. (c) 2014 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | physics, atomic, molecular & chemical ; spectroscopy |
| 研究领域[WOS] | physics ; spectroscopy |
| 关键词[WOS] | mobility spectrometry ; induced dissociation ; phase conformations ; clusters ; faims ; spectroscopy |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000353095000017 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/146191]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Brigham Young Univ, Dept Chem & Biochem, Provo, UT 84602 USA 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Fan,Jones, Chad A.,Dearden, David V.. Effects of kinetic energy and collision gas on measurement of cross sections by Fourier transform ion cyclotron resonance mass spectrometry[J]. international journal of mass spectrometry,2015,378:143-150. |
| APA | Yang, Fan,Jones, Chad A.,&Dearden, David V..(2015).Effects of kinetic energy and collision gas on measurement of cross sections by Fourier transform ion cyclotron resonance mass spectrometry.international journal of mass spectrometry,378,143-150. |
| MLA | Yang, Fan,et al."Effects of kinetic energy and collision gas on measurement of cross sections by Fourier transform ion cyclotron resonance mass spectrometry".international journal of mass spectrometry 378(2015):143-150. |
入库方式： OAI收割
来源：大连化学物理研究所
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