Mass spectra interpretation
Abstract The first step in the interpretation of mass spectra is always determination of the molecular weight. Then, the interpretation of observed the observed fragment ions and subsequent MS/MS experiments (if available) can help to determine the connectivity of the atoms. Exact mass determination with the mass accuracy better than 5 ppm allows assignment of the probable elemental formula fragment ions in the spectra. The last interpretation step is the proposal of a structure, which should be verified with measurement of authentic standard if available.
KeywordsInterpretation, Electron ionization, Soft ionization techniques, Molecular weight, Fragmentation, Functional group, Biomolecule
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