Method for Extracting cIEF-MS Profiles from m/z versus Time Arrays
2023
Online
Patent
A 3-D array of intensity measurements measured as a function of m/z and time is received from a separation device coupled mass spectrometer. The 3-D array is converted to an intensity matrix D. The rows correspond to measured m/z or m/z related values. The columns correspond to time or time-related values. NMF is applied to the D matrix to solve for matrix M and matrix A of the equation D=MA. The NMF is applied to produce in a row (i) of the A matrix time or time-related intensity values for a peak (i) that separates the peak (i) from the 3-D array. The NMF is also applied to produce in column (i) of the M matrix m/z or m/z related intensity values corresponding to the peak (i). A profile of peak (i) is displayed from row (i) or a sum of two or more rows.
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Method for Extracting cIEF-MS Profiles from m/z versus Time Arrays
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Veröffentlichung: | 2023 |
Medientyp: | Patent |
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