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. Author manuscript; available in PMC: 2012 Oct 1.
Published in final edited form as: J Mass Spectrom. 2011 Oct;46(10):1046–1050. doi: 10.1002/jms.1986

Figure 4.

Figure 4

Positive ion mode MALDI mass spectra of phospho- and sphingolipids detected in a rat brain section, using 15nL/spot of 30mg/mL DHB, and a spot center-to-center distance of 200μm. Mass spectra were collected from matrix spots a) onto the MALDI plate, b) at the edge of the tissue and c) onto the tissue.