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Figure 1 | BMC Bioinformatics

Figure 1

From: A software application for comparing large numbers of high resolution MALDI-FTICR MS spectra demonstrated by searching candidate biomarkers for glioma blood vessel formation

Figure 1

A fragment of a MALDI-FTICR MS spectrum as generated from the raw binary fid file. The baseline is the bottom horizontal line. The signal to noise threshold is the upper horizontal line. The peaks at masses 1808.9034 Da and 1809.9062 Da have intensities above the S/N threshold. The masses at 1808.9034 and 1809.9062 Da are used to create the peptide profile matrix. The intensities of all four peaks, including the background signal at approximately masses at 1810.9 and 1811.9 Da are used in the intensity peptide profile matrix.

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