Table 1.
VOCs in CRCP with different drying methods by GC-IMS.
| Class | Compound | CAS# | Formula | RI 1 | Rt 2 | Dt 3 |
|---|---|---|---|---|---|---|
| Alcohol | Ethanol | 64-1-75 | C2H6O | 523.5 | 104.724 | 1.04805 |
| 1-butanol M 4 | 71-36-3 | C4H10O | 677.4 | 171.576 | 1.17932 | |
| 1-butanol D 5 | 71-36-3 | C4H10O | 676.9 | 171.311 | 1.37961 | |
| 1-Penten-3-ol | 616-25-1 | C5H10O | 702.1 | 186.453 | 0.94575 | |
| 1-pentanol | 71-41-0 | C5H12O | 780.5 | 244.293 | 1.25153 | |
| 2-hexenol M | 2305-21-7 | C6H12O | 867.3 | 332.23 | 1.18322 | |
| 2-hexenol D | 2305-21-7 | C6H12O | 868.5 | 333.695 | 1.51696 | |
| 1-hexanol M | 111-27-3 | C6H14O | 892 | 363.121 | 1.32625 | |
| 1-hexanol D | 111-27-3 | C6H14O | 889.9 | 360.381 | 1.5759 | |
| 1-hexanol T 6 | 111-27-3 | C6H14O | 888.8 | 359.011 | 1.63792 | |
| 2-(2-butoxyethoxy) ethanol M | 112-34-5 | C8H18O3 | 1188.2 | 1083.576 | 1.29894 | |
| 2-(2-Butoxyethoxy) ethanol D | 112-34-5 | C8H18O3 | 1188.7 | 1085.725 | 1.8335 | |
| Linalool M | 78-70-6 | C10H18O | 1100.8 | 782.338 | 1.69804 | |
| Linalool D | 78-70-6 | C10H18O | 1099.7 | 779.281 | 1.74952 | |
| Linalool T | 78-70-6 | C10H18O | 1099 | 777.244 | 2.24498 | |
| alpha-Terpineol M | 98-55-5 | C10H18O | 1153.4 | 951.863 | 1.29472 | |
| alpha-Terpineol D | 98-55-5 | C10H18O | 1153.4 | 951.863 | 1.79252 | |
| Borneol | 507-70-0 | C10H18O | 1162.7 | 985.271 | 1.87812 | |
| 4-methylguaiacol | 93-51-6 | C8H10O2 | 1235.2 | 1290.935 | 1.18627 | |
| Eugenol | 97-53-0 | C10H12O2 | 1342 | 1921.288 | 1.27755 | |
| Aldehyde | butanal M | 123-72-8 | C4H8O | 583.1 | 126.081 | 1.10862 |
| butanal D | 123-72-8 | C4H8O | 582.6 | 125.853 | 1.28151 | |
| 2-Methylbutanal M | 96-17-3 | C5H10O | 660.3 | 162.034 | 1.16596 | |
| 2-methylbutanal D | 96-17-3 | C5H10O | 664.7 | 164.42 | 1.40231 | |
| 2-pentenal (E) M | 1576-87-0 | C5H8O | 760.2 | 227.652 | 1.10523 | |
| 2-pentenal (E) D | 1576-87-0 | C5H8O | 760.2 | 227.652 | 1.3608 | |
| 3-Methyl-2-butenal M | 107-86-8 | C5H8O | 791.2 | 253.605 | 1.08773 | |
| 3-Methyl-2-butenal D | 107-86-8 | C5H8O | 792.9 | 255.186 | 1.35507 | |
| Hexanal | 66-25-1 | C6H12O | 809.7 | 270.687 | 1.56489 | |
| Heptanal M | 111-71-7 | C7H14O | 915.4 | 395.238 | 1.32879 | |
| Heptanal D | 111-71-7 | C7H14O | 913.9 | 393.04 | 1.69981 | |
| 2-heptenal (E) | 18829-55-5 | C7H12O | 973.8 | 489.048 | 1.2595 | |
| Octanal | 124-13-0 | C8H16O | 1028.5 | 598.302 | 1.82942 | |
| (E, Z)-2,6-nonadienal M | 557-48-2 | C9H14O | 1128.9 | 868.822 | 1.37581 | |
| (E, Z)-2,6-nonadienal D | 557-48-2 | C9H14O | 1127.1 | 863.094 | 1.89839 | |
| Decanal M | 112-31-2 | C10H20O | 1164.6 | 992.252 | 1.5374 | |
| Decanal D | 112-31-2 | C10H20O | 1164.3 | 991.178 | 2.05885 | |
| (E, E)-2,4-nonadienal M | 5910-87-2 | C9H14O | 1207.2 | 1162.813 | 1.36453 | |
| (E, E)-2,4-Nonadienal D | 5910-87-2 | C9H14O | 1207.9 | 1166.022 | 1.90905 | |
| (E)-2-Decenal | 3913-81-3 | C10H18O | 1285 | 1553.832 | 1.45774 | |
| dodecanal | 112-54-9 | C12H24O | 1353.8 | 2007.827 | 1.65216 | |
| Ester | ethyl acetate M | 141-78-6 | C4H8O2 | 622.2 | 142.952 | 1.0992 |
| ethyl acetate D | 141-78-6 | C4H8O2 | 621.6 | 142.687 | 1.33821 | |
| Butyl acetate M | 123-86-4 | C6H12O2 | 816.2 | 276.945 | 1.24104 | |
| Butyl acetate D | 123-86-4 | C6H12O2 | 815.6 | 276.4 | 1.61883 | |
| gamma-hexalactone | 695-06-7 | C6H10O2 | 1086.2 | 740.983 | 1.1942 | |
| ethyl phenylacetate | 101-97-3 | C10H12O2 | 1235 | 1289.86 | 1.29632 | |
| Citronellyl acetate | 150-84-5 | C12H22O2 | 1302.6 | 1659.3 | 1.45864 | |
| Ketone | 2-Propanone | 67-64-1 | C3H6O | 541.3 | 110.601 | 1.12169 |
| 2,3-butanedione | 431-03-8 | C4H6O2 | 600.8 | 133.411 | 1.16329 | |
| 2-butanone | 78-93-3 | C4H8O | 608.6 | 136.791 | 1.24761 | |
| 1-penten-3-one M | 1629-58-9 | C5H8O | 687.4 | 177.406 | 1.0765 | |
| 1-penten-3-one D | 1629-58-9 | C5H8O | 688.7 | 178.201 | 1.31284 | |
| 3-Pentanone M | 96-22-0 | C5H10O | 700.1 | 185.224 | 1.10919 | |
| 3-Pentanone D | 96-22-0 | C5H10O | 698.4 | 184.143 | 1.35795 | |
| Oxophorone M | 1125-21-9 | C9H12O2 | 1115.9 | 827.854 | 1.33086 | |
| Oxophorone D | 1125-21-9 | C9H12O2 | 1116.5 | 829.725 | 1.84344 | |
| Terpenes | alpha-Pinene M | 80-56-8 | C10H16 | 948.6 | 445.976 | 1.67808 |
| alpha-Pinene D | 80-56-8 | C10H16 | 949.2 | 447.025 | 1.73103 | |
| beta-Pinene M | 127-91-3 | C10H16 | 993.1 | 524.956 | 1.64321 | |
| beta-Pinene D | 127-91-3 | C10H16 | 991.2 | 521.248 | 1.72546 | |
| beta-Pinene T | 127-91-3 | C10H16 | 990.8 | 520.506 | 2.19066 | |
| Myrcene M | 123-35-3 | C10H16 | 1011.6 | 562.037 | 1.72546 | |
| Myrcene D | 123-35-3 | C10H16 | 1011.6 | 562.037 | 2.16496 | |
| alpha-Phellandrene | 99-83-2 | C10H16 | 1021 | 581.757 | 1.68895 | |
| alpha-Terpinene | 99-86-5 | C10H16 | 1034.6 | 611.873 | 1.72619 | |
| Limonene M | 138-86-3 | C10H16 | 1050.7 | 649.547 | 1.65606 | |
| Limonene D | 138-86-3 | C10H16 | 1048.3 | 643.614 | 1.72546 | |
| Limonene T | 138-86-3 | C10H16 | 1049.2 | 645.839 | 2.18809 | |
| gamma-Terpinene | 99-85-4 | C10H16 | 1066.6 | 689.045 | 1.70481 | |
| beta-Caryophyllene | 87-44-5 | C15H24 | 1322.6 | 1787.542 | 1.43563 | |
| Acid | 2-Methylpropanoic acid | 79-31-2 | C4H8O2 | 764.4 | 230.926 | 1.15807 |
| butanoic acid | 107-92-6 | C4H8O2 | 786.8 | 249.723 | 1.16201 | |
| 2-methylbutanoic acid | 116-53-0 | C5H10O2 | 843.1 | 304.723 | 1.21017 | |
| Sulfur compounds | 1-Propanethiol M | 107-03-9 | C3H8S | 643.7 | 153.378 | 1.17294 |
| 1-Propanethiol D | 107-03-9 | C3H8S | 643.7 | 153.378 | 1.36195 | |
| Diallyl disulfide | 2179-57-9 | C6H10S2 | 1114.2 | 822.419 | 1.19572 | |
| others | 3-Butenenitrile M | 109-75-1 | C4H5N | 643.9 | 153.474 | 1.12412 |
| 3-Butenenitrile D | 109-75-1 | C4H5N | 643.3 | 153.202 | 1.24375 | |
| 3-Hydroxy-2-butanone | 513-86-0 | C4H8O2 | 730.7 | 205.546 | 1.33384 | |
| d-Camphor M | 464-49-3 | C10H16O | 1127.4 | 864.049 | 1.33526 | |
| d-Camphor D | 464-49-3 | C10H16O | 1128 | 865.958 | 1.85559 |
1Represents the retention index calculated using n-ketones C4-9 as external standard.
2Represents the retention time in the capillary GC column.
3Represents the drift time in the drift tube.
4Represents the monomer of the substance.
5Represents the dimer of the substance.
6Represents the trimer of the substance.