Figure 3 | Scientific Reports

Figure 3

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 3

Mass spectral quality comparison between recording and processing modes for 1 pixel per second analyses of a rat kidney section. Zoom-ins of full image average reduced profile spectra of: (a) typical LTQ-FT performance at 50 k (at m/z 400) resolution setting; (b) in parallel acquired spectrum on the external data acquisition (DAQ) unit and obtained with mFT processing; (c) resolution and sensitivity optimized experiment for the external DAQ unit, with aFT processing. *IT = accumulation time; OH = overhead time; ACQ = acquisition time. Spectra are normalized to the spectrum base peak. The full profile aFT version of (c) is provided as Supplementary Fig. S1.

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