高压圆柱形离子阱中的离子轨迹模拟

Ion trajectory simulations in a high-pressure cylindrical ion trap.

作者信息

Albrieux F, Antoine R, Chirot F, Lemoine J, Dugourd Ph

机构信息

UMR5579, LASIM, CNRS, Université Lyon 1, Villeurbanne, F-69622 Lyon, France.

出版信息

Eur J Mass Spectrom (Chichester). 2010;16(5):557-65. doi: 10.1255/ejms.1098.

DOI:10.1255/ejms.1098

PMID:20814083

Abstract

We present the simulation of a cylindrical ion trap (CIT) at high pressure (5-25 Torr range). SIMION 7.0 software was used for the simulations. The effect of pressure, RF frequency and trap dimensions has been investigated. The shape of stability diagrams at non-zero pressure is drastically different from the one observed in vacuum. Preliminary experimental results are shown, using a r = z = 3 mm-long CIT at 12 Torr for trapping peptide and protein ions.

摘要

我们展示了在高压（5 - 25托范围）下圆柱形离子阱（CIT）的模拟情况。使用SIMION 7.0软件进行模拟。研究了压力、射频频率和阱尺寸的影响。非零压力下稳定性图的形状与在真空中观察到的有很大不同。展示了初步实验结果，使用一个r = z = 3毫米长的CIT在12托下捕获肽和蛋白质离子。