Research Article
Determination of Lactones in Wines by Headspace Solid-Phase Microextraction and Gas Chromatography Coupled with Mass Spectrometry
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 |
| | -Butyrolactone | 2033 | 7644 | 10782 | 3820 | 9353 | 11068 | | -Hexalactone | 20681 | 129160 | 155069 | 53359 | 143513 | 155513 | | -Heptalactone (IS) | 38894 | 185530 | 230138 | 81918 | 209111 | 230259 | | Whiskey-lactone I | 110605 | 364837 | 413042 | 199319 | 387667 | 413463 | | -Octalactone | 111825 | 360337 | 407674 | 197209 | 384203 | 408474 | | Whiskey-lactone II | 90756 | 320900 | 380063 | 183103 | 351145 | 380190 | | -Nonalactone | 119260 | 374890 | 417670 | 212936 | 389701 | 418269 | | -Decalactone | 106828 | 327823 | 363834 | 186756 | 339222 | 364786 | | 3,4-Dimethylphenol (IS) | 444709 | 999600 | 1090969 | 490860 | 1032004 | 1092175 | | -Decalactone | 16550 | 130347 | 175598 | 49251 | 138751 | 175672 | | -Undecalactone | 135335 | 367100 | 412196 | 217489 | 381118 | 411959 |
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