Table 4.
Normalized peak areas at different temperatures and desorption time.
| Compound | 250°C | 300°C | ||||
|---|---|---|---|---|---|---|
| 2 min | 5 min | 10 min | 2 min | 5 min | 10 min | |
| γ-Butyrolactone | 2033 | 7644 | 10782 | 3820 | 9353 | 11068 |
| γ-Hexalactone | 20681 | 129160 | 155069 | 53359 | 143513 | 155513 |
| γ-Heptalactone (IS) | 38894 | 185530 | 230138 | 81918 | 209111 | 230259 |
| Whiskey-lactone I | 110605 | 364837 | 413042 | 199319 | 387667 | 413463 |
| γ-Octalactone | 111825 | 360337 | 407674 | 197209 | 384203 | 408474 |
| Whiskey-lactone II | 90756 | 320900 | 380063 | 183103 | 351145 | 380190 |
| γ-Nonalactone | 119260 | 374890 | 417670 | 212936 | 389701 | 418269 |
| γ-Decalactone | 106828 | 327823 | 363834 | 186756 | 339222 | 364786 |
| 3,4-Dimethylphenol (IS) | 444709 | 999600 | 1090969 | 490860 | 1032004 | 1092175 |
| δ-Decalactone | 16550 | 130347 | 175598 | 49251 | 138751 | 175672 |
| γ-Undecalactone | 135335 | 367100 | 412196 | 217489 | 381118 | 411959 |