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. Author manuscript; available in PMC: 2013 Sep 18.
Published in final edited form as: Anal Chem. 2012 Aug 27;84(18):7684–7691. doi: 10.1021/ac300628s

Figure 2. The PACE-MSI interface and mixed trace on the MALDI sample plate.

Figure 2

A: CE flow and matrix flow are delivered separately and mixed at the capillary tips on the surface of a ground stainless steel MALDI plate. B and C: a 1:1 labeled peak pair at m/z 1356.6/1360.6 with identical peak intensities and migrations are observed in MS imaging when coupled with PACE.