用于液相色谱-离子淌度-质谱联用的具有正交离子加速功能的二阶聚焦扇形场型飞行时间质谱仪。

The 2nd order focusing sector field type TOF mass analyzer with an orthogonal ion acceleration for LC-IMS-MS.

作者信息

Poteshin S S, Zarakovsky A I

机构信息

National Research Nuclear University "MEPhI", Russian Federation.

出版信息

J Chromatogr B Analyt Technol Biomed Life Sci. 2017 Mar 15;1047:39-44. doi: 10.1016/j.jchromb.2016.11.030. Epub 2016 Nov 22.

DOI:10.1016/j.jchromb.2016.11.030

PMID:27979588

Abstract

Original orthogonal acceleration (OA) electrostatic sector time of flight (TOF) mass analyzer is proposed those allows the second order focusing of time of flight by initial ions position. Resolving power aberration limit exceeding 80,000 FW (full width mass peak) was shown to be obtainable for mass analyzer with the total length of flight L=133.2cm, the average ion energy 3700V and the ion energy spread of 2.5% on the entrance of sector field.

摘要

提出了一种原始正交加速度（OA）静电扇形飞行时间（TOF）质量分析器，它可以根据初始离子位置对飞行时间进行二阶聚焦。对于飞行总长度L = 133.2cm、平均离子能量3700V且扇形场入口处离子能量分散为2.5%的质量分析器，已证明其分辨能力的像差极限超过80,000 FW（全宽质量峰）。