Table 2. Fiber-dependent extraction of metabolites.
| SPME Fiber | GC-MS (Identities) | GC-MS (Retention Time) | GC-FID (Retention Time) | |||
| totala | uniqueb | total | unique | total | unique | |
| 75 µm CAR-PDMS | 45 (60) | 5 | 93 (35) | 10 | 109 (50) | 6 |
| 85 µm CAR-PDMS | 46 (62) | 1 | 119 (44) | 15 | 119 (54) | 6 |
| 50/30 µm CAR-DVB-PDMS | 47 (63) | 6 | 107 (41) | 13 | 157 (71) | 16 |
| 85 µm PA | 32 (44) | 3 | 53 (20) | 8 | 82 (37) | 4 |
| 65 µm DVB-PDMS | 32 (45) | 1 | 122 (46) | 21 | 138 (63) | 8 |
| 7 µm PDMS | 28 (36) | 0 | 90 (34) | 20 | 76 (35) | 5 |
| 100 µm PDMS | 29 (49) | 1 | 98 (37) | 9 | 80 (37) | 1 |
| 60 µm PEG | 18 (26) | 2 | 74 (28) | 12 | 88 (41) | 8 |
a
bracketed values are the percentage of total metabolites identified.
b
number of metabolites exclusively associated with the fiber type.