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    • 8. 发明授权
    • Method of processing and storing mass spectrometry data
    • 处理和储存质谱数据的方法
    • US07962301B2
    • 2011-06-14
    • US12639914
    • 2009-12-16
    • Robert MalekOliver Lange
    • Robert MalekOliver Lange
    • G06F17/00
    • H01J49/0036H03M7/30
    • A data compression technique is disclosed for Fourier Transform Mass Spectrometry (FTMS). A statistical analysis is applied to the data in the frequency domain since most of this data is a result of randomly distributed electronic noise. A fit of the whole frequency dataset to the distribution is made to determine preliminary moments of the distribution. The data in the tail of that distribution (which is mainly the peak data) is then removed and the remaining data points are re-fitted to the distribution, to identify the moments of distribution of that remaining noise data. A noise threshold for the mass spectrum is then applied using the calculated moments. The data above the threshold is kept. The whole spectrum can be reconstituted by storing the moments of distribution along with the peak data and then regenerating the noise from those moments and adding it to the peak data.
    • 公开了用于傅立叶变换质谱(FTMS)的数据压缩技术。 对频域中的数据进行统计分析,因为这些数据大部分是随机分布的电子噪声的结果。 将整个频率数据集合到分布上进行确定分布的初步时刻。 然后删除该分布尾部的数据(主要是峰值数据),并将剩余的数据点重新拟合到分布中,以识别该剩余噪声数据的分布时刻。 然后使用计算的时刻应用质谱的噪声阈值。 保持阈值以上的数据。 可以通过将分布的时刻与峰值数据一起存储,然后从那些时刻再生噪声并将其加到峰值数据来重构整个频谱。
    • 9. 发明申请
    • Method Of Improving A Mass Spectrum
    • 改善质谱的方法
    • US20070203652A1
    • 2007-08-30
    • US10592745
    • 2005-03-24
    • Stevan HorningOliver LangeRobert MalekAndreas Wieghaus
    • Stevan HorningOliver LangeRobert MalekAndreas Wieghaus
    • G06F19/00
    • H01J49/38H01J49/0009
    • The present invention provides a method of improving a mass spectrum collected from a mass spectrometer comprising a detector for collecting a mass spectrum from ions stored in or released from an ion trapping volume, wherein assignment of masses to peaks appearing in the mass spectrum is sensitive to an experimental parameter related to the mass spectrometer or the operation thereof, such as ion abundance, the method comprising: determining a positional value of a peak; determining the experimental parameter associated with the mass spectrum; comparing the determined positional value with positional values of peaks contained in a calibration dataset; and improving the determined positional value of the peak from adjacent peak positional values by interpolation thereby to provide a corrected mass assignment for the peak. The present invention also provides a method of calibrating such a mass spectrometer.
    • 本发明提供了一种改进从质谱仪收集的质谱的方法,该质谱仪包括用于从离子捕获体积存储或释放的离子中收集质谱的检测器,其中质谱对质谱中出现的峰的分配对 与质谱仪或其操作相关的实验参数,例如离子丰度,该方法包括:确定峰的位置值; 确定与质谱相关的实验参数; 将确定的位置值与校准数据集中包含的峰的位置值进行比较; 并且通过插值从相邻的峰值位置值改善确定的峰值的位置值,从而为峰值提供校正的质量分配。 本发明还提供了一种校准这种质谱仪的方法。
    • 10. 发明申请
    • Fourier transform mass spectrometer and method for generating a mass spectrum therefrom
    • 傅里叶变换质谱仪及其生成质谱的方法
    • US20070176091A1
    • 2007-08-02
    • US10592742
    • 2005-03-24
    • Oliver LangeAndreas Wieghaus
    • Oliver LangeAndreas Wieghaus
    • H01J49/00
    • H01J49/38H01J49/0031
    • A method of generating a mass spectrum from an FTMS is disclosed. A first quantity of ions from a source, having a first m/z range, is captured and detected in the FTMS measurement cell to produce a first output. A second quantity of ions, having a second m/z range which at least partially does not overlap with the first m/z range, is then captured and detected so as to produce a second output. The two outputs are then combined using a processor so as to “stitch” together the outputs, which may be FTMS transients or may first be Fourier Transformed into the frequency mass domain, into a composite output from which a composite mass spectrum covering the full range of m/z ratios included by the first and second ranges can be produced.
    • 公开了一种从FTMS产生质谱的方法。 在FTMS测量单元中捕获并检测来自源的具有第一m / z范围的第一数量的离子以产生第一输出。 然后捕获并检测具有至少部分不与第一m / z范围重叠的第二m / z范围的第二数量的离子,以产生第二输出。 然后使用处理器来组合两个输出,以便将可以是FTMS瞬变或者可以首先被傅立叶转换成频率质量域的输出“缝合”到复合输出中,从该复合输出中覆盖整个范围的复合质谱 可以产生由第一和第二范围包括的m / z比率。