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. Author manuscript; available in PMC: 2015 Aug 28.
Published in final edited form as: Eur J Mass Spectrom (Chichester). 2015;21(3):275–285. doi: 10.1255/ejms.1366

Figure 3.

Figure 3

CID tandem mass spectra for dp6 CSA and DS showing ions that differ in intensity between the two chains. Only the ions with intensity differences between the two chains are annotated in the spectra but all the fragment ions found in the two spectra are indicated in the structure below the spectra with 2,4A and 0,2X ions appearing in red. The ions that are shown in red in the spectra have been reported by others in previous studies before, but are found to be less diagnostic of C5 stereochemistry than the ions highlighted in green.