Figure 5 | Scientific Reports

Figure 5

From: Increased throughput and ultra-high mass resolution in DESI FT-ICR MS imaging through new-generation external data acquisition system and advanced data processing approaches

Figure 5

Full image average mass spectrum showing the separation of [PC(36:4 + H]+ and [PC(34:1) + Na]+. The data was acquired on the external DAQ unit and processed with aFT. Acquisition time of 16761 spectra at a pixel size of 150 µm was approximately 31 hours. Insets: the spatial distributions of [PC(34:1) + Na]+ and [PC(36:4 + H]+, noted with the annotation mass error. The images are TIC normalized and spectral abundance is indicated as relative to the base peak (m/z 798.5) in the full mass range (m/z 700–900). Note the achieved mass resolution (1 million@m/z 782).

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