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Chemistry · L4 · Mass spectrometry fragmentation: molecular ions, alpha cleavage, and isotope patterns · flowchart

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Molecular ion M+.Carbonyl presentwith alpha C-C bond?Alpha cleavage:lose alkyl radical,form acylium cationGamma-H available?McLafferty rearrangement:lose neutral alkenevia 6-membered TSFragment ion peaksin the spectrumYesYes
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