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. Author manuscript; available in PMC: 2011 Aug 1.
Published in final edited form as: Anal Chem. 2010 Aug 1;82(15):6652–6659. doi: 10.1021/ac101243b

Figure 6.

Figure 6

The plane of fracture through the PC12 cells exposes different chemistry. A) An overlay of red (K+), blue (Na+) and green (PC fragment at m/z 184) is shown. Five ROI’s are marked in colored circles. The scale bar is 20 μm. B) Bar graph showing the intensity normalized to total ion current of four different ions. The color code in the graph follows that of the ROI in image 6A, giving the intensities of the ions in the different ROI’s. m/z 23 (Na+) and m/z 39 (K+) correspond to the y-axis on the left, m/z 86 (PC lipid fragment) and m/z 184 (PC lipid fragment) correspond to the y-axis on the right.