Wm. Craig Byrdwell, phd

Resources for Lipid Analysis in the 21st Century

Sphingomyelin Fragments

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Scheme 2 shows possible structures for fragments from 24:0 Sphingomyelin.  Although 24:1 SPM is more common, the following structures are given to demonstrate how SPM can be differentiated from DHS using the long-chain base (LCB) and fatty acid (FA) related fragment ions. Compare to Scheme 3.

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Scheme 2

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