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. 2011 Apr 8;6(4):e18471. doi: 10.1371/journal.pone.0018471

Figure 3. Fiber-dependent GC-MS identification and analysis of metabolites present in the human fecal VOC metabolome.

Figure 3

A heat map presents the identified metabolites extracted by each SPME fiber and their relative chromatographic peak areas. Each of the eight columns in the heat map represents a different fiber. Metabolites are indicated on each row and are organized by functional group. Each extraction was performed in duplicate and replicates combined by averaging peak area values. Fiber legend: A - 75 µm CAR-PDMS, B - 85 µm CAR-PDMS, C - 50/30 µm CAR-DVB-PDMS, D - 85 µm PA, E - 65 µm DVB-PDMS, F - 7 µm PDMS, G - 100 µm PDMS, H - 60 µm PEG.