The spontaneous loss of coherence catastrophe in Fourier transform ion cyclotron resonance mass spectrometry.

The spontaneous loss of coherence catastrophe in Fourier transform ion cyclotron resonance mass spectrometry.
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DOI:
10.1016/j.jasms.2008.09.028
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发表时间:
2009-02
影响因子:
3.2
通讯作者:
O'Connor PB
O'Connor PB
中科院分区:
化学3区
文献类型:
--
作者:
Aizikov K;Mathur R;O'Connor PB

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自发性相干消失突变(SLCC)是傅里叶变换离子回旋共振质谱(FTICR-MS)中一种常见的空间电荷相关效应,但研究较少。本文介绍了滤波器对角化方法(FDM)在分析这一现象中的应用。通过频移分析使用FDM再现的时间频率行为显示了SLCC的复杂性质,这可以通过同时发生的因素的组合来解释,所述因素由ICR单元内的静电和离子包轨迹来控制。
The spontaneous loss of coherence catastrophe (SLCC) is a frequently observed, yet poorly studied, space-charge related effect in Fourier-transform ion cyclotron resonance mass spectrometry (FTICR-MS). This manuscript presents an application of the filter diagonalization method (FDM) in the analysis of this phenomenon. The temporal frequency behavior reproduced by frequency shift analysis using the FDM shows the complex nature of the SLCC, which can be explained by a combination of factors occurring concurrently, governed by electrostatics and ion packet trajectories inside the ICR cell.
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