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Mass spectrometric images of infarcted mouse heart with and without addition of salt. Infarcted areas are shown with dashed lines in images in the first column. Ion images were acquired using a 40 kV (CO2)6k+ ion beam with primary ion dose density of 1 × 1013 ions/cm2. All images are 6 mm in width. Scale bar in top left image is 1 mm and applies to all subsequent images. Signal intensity is displayed on a thermal scale as shown on the right.
