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MALDI ion mobility two-dimension mass spectrum of a mixture comprised of brain phosphatidylcholine and sphingomyelin. MALDI ion mobility 2D spectrum of 25 pmol each of brain phosphatidylcholine (PC) extract and brain sphingomyelin (SM) extract was acquired with DHA matrix. The results demonstrate the ion mobility separation of PC and SM species. (Reprinted from the ref. (Jackson et al., 2008) with permission from the American Society for Mass Spectrometry, Copyright 2008).
