Skip to main content
. 2010 Jul 14;5(7):e11411. doi: 10.1371/journal.pone.0011411

Figure 4. The distribution of endogenous molecules in lung tissue compartments by MS and identification by MS/MS.

Figure 4

Photograph of rat lung tissue (A). Panel B–E displays the distribution of four different endogenous molecules present in (A). These molecules were identified as different phosphatidylcholines by MS/MS directly on the tissue section. (F) MS/MS spectrum of PC(12∶0/0∶0)K+, (G) MS/MS spectrum of PC(18∶0/0∶0), (H) MS/MS spectrum of PC(16∶1/10∶0), (I) MS/MS spectrum of PC(32∶0)K+. The MALDI matrix CHCA was applied by an automatic sprayer device.