Use of Neutral Loss Mass to Reconstruct MS-2 Spectra in All Ions Fragmentation
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United States of America Patent
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Issued Date -
May 22, 2014
app pub date -
Nov 20, 2012
filing date -
Nov 20, 2012
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Abstract
A method is provided for acquiring and interpreting data using a mass spectrometer, said method comprising: (a) generating a multiplexed mass spectrum using the mass spectrometer system, the multiplexed mass spectrum comprising a superposition of a plurality of product-ion mass spectra comprising a plurality of product-ion types having respective product-ion mass-to-charge (m/z) ratios, each product-ion mass spectrum corresponding to fragmentation of a respective precursor-ion type formed by ionization of a chemical compound, each precursor-ion type having a respective precursor-ion mass-to-charge (m/z) ratio and (b) recognizing a set comprising a precursor-ion type and one or more product-ion types corresponding to each of one or more of the product-ion mass spectra by recognizing one or more losses of a respective valid neutral molecule from each said precursor-ion type.
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