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Figure 2 | BioData Mining

Figure 2

From: Extraction of pure components from overlapped signals in gas chromatography-mass spectrometry (GC-MS)

Figure 2

Two scenarios illustrating the problem of peak overlap in GC-MS data. Components A and B, whose mass spectra are given in Figure 1 are assumed to be present in the mixture. If the retention times of the two components differ significantly the observed signal will consist of two well resolved peaks, as shown in the panel (a); the panel (b) shows the corresponding total ion chromatogram (TIC). If the two components elute closely together (panel (c)), the TIC may exhibit only a single, composite peak, as shown in panel (d).

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