Fourier transform ion cyclotron resonance detection: principles and experimental configurations

被引:138
作者
Marshall, AG [1 ]
Hendrickson, CL [1 ]
机构
[1] Florida State Univ, Natl High Magnet Field Lab, Ctr Interdisciplinary Magnet Resonance, Tallahassee, FL 32310 USA
基金
美国国家卫生研究院; 美国国家科学基金会;
关键词
Fourier transform; ion cyclotron resonance; ICR; FTMS;
D O I
10.1016/S1387-3806(01)00588-7
中图分类号
O64 [物理化学(理论化学)、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号
070203 ; 070304 ; 081704 ; 1406 ;
摘要
Fourier transform ion cyclotron resonance mass spectrometry is based on image current detection of coherently excited ion cyclotron motion. The detected signal magnitude and peak shape may be understood from idealized behavior: single ion, zero-pressure, spatially uniform magnetic field, three-dimensional axial quadrupolar electrostatic trapping potential, and spatially uniform resonant alternating electric field. In practice, deviation from any of the above conditions will shift, distort split, and/or coalesce FT-ICR mass spectral peaks. Fortunately, such peak distortions may typically be avoided by appropriate experimental design and/or greatly minimized by internal frequency-to-m/z calibration. Various aspects of modem FT-ICR detection (hardware and software) are discussed. (Int J Mass Spectrom 215 (2002) 59-75) (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:59 / 75
页数:17
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