Autophaser: an algorithm for automated generation of absorption mode spectra for FT-ICR MS.

Autophaser: an algorithm for automated generation of absorption mode spectra for FT-ICR MS.
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DOI:
10.1021/ac303289c
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发表时间:
2013-04-16
影响因子:
7.4
通讯作者:
O'Connor PB
O'Connor PB
中科院分区:
化学1区
文献类型:
--
作者:
Kilgour DP;Wills R;Qi Y;O'Connor PB

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傅里叶变换-离子回旋共振(FT-ICR)质谱数据的相位校正允许光谱以吸收模式呈现。吸收模式光谱提供优于传统幅度模式的上级质量分辨能力(高达2倍)、质量准确度和灵敏度。然而,在FT-ICR质谱法中使用吸收模式需要特别适应的仪器或手动密集的相位校正过程,或者忽略了图像电荷和相关频移的潜在显著影响。在这里,我们提出了一种算法,允许记录在未调整的FT-ICR质谱仪的光谱进行相位校正,其基线偏差被删除,然后以自动化的方式呈现吸收模式图,这需要很少的用户交互。
Phase correction of Fourier Transform – Ion Cyclotron Resonance (FT-ICR) mass spectrometry data allows the spectra to be presented in absorption mode. Absorption mode spectra offer superior mass resolving power (up to a factor of 2), mass accuracy, and sensitivity over the conventional magnitude mode. Hitherto, the use of absorption mode in FT-ICR mass spectrometry has required either specially adapted instrumentation or a manually intensive process of phase correction or has ignored the potentially significant effects of image charge and the associated frequency shifts. Here we present an algorithm that allows spectra recorded on un-adapted FT-ICR mass spectrometers to be phase corrected, their baseline deviations removed, and then an absorption mode plot presented in an automated manner which requires little user interaction.
DOI: 10.1002/oms.1210260527
发表时间: 1991-05-01
期刊: ORGANIC MASS SPECTROMETRY
影响因子: --
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