Table 3.
No.a | Components£ | lRIab | RIac | Rootsd | Leavesd | Stemsd | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
A | B | C | D | A | B | C | D | A | B | C | D | ||||
1a | Heptane | 700 | 702 | 0.3 ± 0.01 | tr | - | - | 0.1 ± 0.01 | tr | tr | tr | 0.3 ± 0.07 | 0.1 ± 0.01 | 0.1 ± 0.01 | 0.1 ± 0.01 |
1b | 3-methyl 1-Butanol | 717 | 710 | - | - | - | - | tr | - | - | - | 0.3 ± 0.01 | 0.1 ± 0.01 | 0.3 ± 0.01 | 0.5 ± 0.07 |
1c | Hexanal | 780 | 767 | tr | tr | tr | - | tr | 0.1 ± 0.01 | tr | 0.6 ± 0.07 | 0.7 ± 0.07 | 0.2 ± 0.01 | 0.8 ± 0.07 | 1.0 ± 0.14 |
1d | Hex-5-en-1-ol | 820 | 820 | - | - | - | - | 0.3 ± 0.07 | 0.5 ± 0.07 | 0.2 ± 0.01 | 0.9 ± 0.07 | tr | tr | 0.1 ± 0.01 | 0.1 ± 0.01 |
1e | 2-Heptanone | 871 | 870 | tr | - | - | - | tr | 0.3 ± 0.01 | 0.3 ± 0.01 | tr | - | - | - | |
1 | Nonane | 906 | 902 | 0.3 ± 0.07 | 5.5 ± 0.21 | - | - | 3.7 ± 0.14 | 2.1 ± 0.14 | 1.2 ± 0.14 | 0.8 ± 0.14 | 1.4 ± 0.14 | 0.5 ± 0.07 | 1.4 ± 0.21 | 1.7 ± 0.28 |
2 | α-Pinene | 936 | 931 | - | - | - | - | 0.2 ± 0.01 | 2.8 ± 0.21 | 0.2 ± 0.01 | 0.6 ± 0.01 | 6.1 ± 0.21 | 1.8 ± 0.21 | 6.1 ± 0.01 | 2.6 ± 0.14 |
2a | Camphene | 950 | 943 | - | - | - | - | 0.1 ± 0.01 | - | - | - | 0.2 ± 0.01 | 0.2 ± 0.01 | 0.2 ± 0.01 | 0.2 ± 0.01 |
3 | Sabinene | 973 | 966 | - | 0.1 ± 0.01 | - | - | 0.3 ± 0.01 | 0.3 ± 0.01 | - | tr | 0.6 ± 0.07 | 0.2 ± 0.01 | 0.4 ± 0.01 | 0.3 ± 0.01 |
3a | 2-pentyl Furan | 981 | 978 | 0.3 ± 0.01 | - | - | - | tr | - | - | 0.2 ± 0.01 | tr | 0.2 ± 0.01 | 0.1 ± 0.01 | |
5 | Myrcene | 987 | 981 | - | - | - | - | 0.1 ± 0.01 | 0.6 ± 0.14 | - | 0.2 ± 0.07 | 10.6 ± 0.64 | 10.0 ± 0.64 | 7.4 ± 0.54 | 7.5 ± 0.35 |
5a | α-Phellandrene | 1002 | 991 | - | - | - | - | tr | 0.2 ± 0.01 | - | - | 0.3 ± 0.01 | 0.4 ± 0.07 | 0.4 ± 0.01 | 0.4 ± 0.07 |
5b | 3-methyl butyl Isobutyrate | 994 | 997 | - | - | - | - | 0.2 ± 0.01 | tr | 0.1 ± 0.01 | - | tr | 0.1 ± 0.01 | 0.1 ± 0.01 | 0.1 ± 0.01 |
6 | Decane | 993 | 998 | 0.2 ± 0.01 | 1.2 ± 0.14 | 0.1 ± 0.01 | - | tr | tr | - | 0.1 ± 0.01 | 0.3 ± 0.01 | 0.2 ± 0.01 | 0.2 ± 0.01 | |
6a | 2-methyl butyl Isobutyrate | 1004 | 999 | - | - | - | - | 0.1 ± 0.01 | tr | 0.2 ± 0.01 | - | 0.1 ± 0.01 | - | - | tr |
7 | p-Cymene | 1015 | 1012 | - | - | - | - | 3.5 ± 0.21 | - | 0.1 ± 0.01 | 2.2 ± 0.14 | 0.2 ± 0.01 | 2.7 ± 0.21 | 3.3 ± 0.21 | |
9 | Limonene | 1025 | 1026 | - | 0.1 ± 0.01 | - | - | 0.2 ± 0.01 | 2.0 ± 0.35 | 0.2 ± 0.01 | 0.3 ± 0.07 | 7.5 ± 0.49 | 11.7 ± 0.64 | 9.9 ± 0.49 | 11.1 ± 0.92 |
10 | (E)-β-Ocimene | 1041 | 1037 | - | - | - | - | tr | 0.7 ± 0.07 | 0.1 ± 0.01 | tr | 0.1 ± 0.01 | 0.5 ± 0.01 | 0.4 ± 0.01 | 0.7 ± 0.01 |
11 | γ-Terpinene | 1051 | 1049 | - | - | - | - | 0.2 ± 0.01 | 7.4 ± 0.01 | - | - | 1.6 ± 0.28 | 2.7 ± 0.21 | 1.6 ± 0.01 | 2.3 ± 0.28 |
12 | 1-Octanol | 1061 | 1056 | - | - | - | - | 0.1 ± 0.01 | tr | - | tr | 0.2 ± 0.01 | 0.1 ± 0.01 | 0.1 ± 0.01 | 0.2 ± 0.07 |
13 | 2-methyl Decane | 1068 | 1065 | 0.4 ± 0.07 | 6.7 ± 0.71 | 0.3 ± 0.07 | - | 0.6 ± 0.07 | - | - | - | tr | - | tr | tr |
14 | Nonanal | 1076 | 1074 | - | - | - | - | tr | 0.4 ± 0.01 | - | - | - | 0.3 ± 0.01 | 0.5 ± 0.01 | 0.8 ± 0.07 |
15 | α-Terpinolene | 1082 | 1079 | - | - | - | - | 0.2 ± 0.01 | 9.4 ± 0.42 | - | - | 0.2 ± 0.01 | 0.3 ± 0.01 | 0.3 ± 0.01 | 0.5 ± 0.07 |
15a | 2-Nonanol | 1085 | 1080 | - | - | - | 0.1 ± 0.01 | - | - | - | - | 0.1 ± 0.01 | 0.4 ± 0.01 | 0.4 ± 0.01 | 0.5 ± 0.01 |
17 | Undecane | 1100 | 1098 | 43.5 ± 0.85 | 5.0 ± 0.35 | 26.2 ± 0.92 | 2.3 ± 0.21 | 11.1 ± 0.57 | 2.9 ± 0.35 | 1.2 ± 0.07 | 8.9 ± 0.28 | 2.7 ± 0.78 | 2.8 ± 0.14 | 2.1 ± 0.35 | 2.6 ± 0.14 |
17a | Limonene 1,2-epoxide | 1117 | 1113 | - | - | - | - | tr | 0.1 ± 0.01 | - | - | - | - | - | - |
17b | Camphor | 1123 | 1120 | - | - | - | - | tr | 0.5 ± 0.07 | 0.3 ± 0.01 | 0.5 ± 0.07 | 0.1 ± 0.01 | 0.2 ± 0.01 | 0.2 ± 0.01 | 0.2 ± 0.01 |
17c | n-hexyl Isobutyrate | 1127 | 1126 | - | - | - | - | 0.1 ± 0.01 | 0.1 ± 0.01 | - | 0.1 ± 0.01 | - | 0.2 ± 0.01 | 0.1 ± 0.01 | tr |
17d | Cryptone | 1160 | 1158 | - | - | - | - | tr | 0.1 ± 0.01 | - | - | 0.4 ± 0.07 | 0.3 ± 0.01 | 0.3 ± 0.01 | 0.3 ± 0.01 |
19 | Terpinen-4-ol | 1164 | 1161 | - | - | - | - | - | - | - | - | 0.3 ± 0.01 | 0.6 ± 0.07 | 0.3 ± 0.01 | 0.4 ± 0.01 |
19a | 3-methyl Undecane | 1170 | 1165 | 0.1 ± 0.01 | 0.5 ± 0.07 | tr | - | - | - | - | - | - | - | - | - |
19b | Estragole | 1175 | 1169 | - | - | - | - | 0.2 ± 0.01 | - | - | - | tr | 0.9 ± 0.01 | 0.8 ± 0.14 | 1.0 ± 0.14 |
21 | Decanal | 1188 | 1187 | - | 0.1 ± 0.01 | - | - | 1.5 ± 0.02 | 14.8 ± 0.01 | 7.8 ± 0.57 | 2.5 ± 0.14 | 1.1 ± 0.01 | 1.8 ± 0.21 | 2.1 ± 0.14 | 2.5 ± 0.01 |
22 | Dodecane | 1200 | 1198 | 0.3 ± 0.07 | 0.3 ± 0.01 | tr | - | 0.1 ± 0.01 | tr | - | - | tr | 0.3 ± 0.01 | 0.2 ± 0.01 | 0.2 ± 0.01 |
22a | γ-Octanolide | 1208 | 1208 | - | - | - | - | 0.1 ± 0.01 | 0.1 ± 0.01 | 0.5 ± 0.01 | 0.1 ± 0.01 | 0.2 ± 0.01 | 0.4 ± 0.01 | 0.3 ± 0.01 | 0.4 ± 0.07 |
22b | Chavicol | 1219 | 1214 | - | 0.1 ± 0.01 | - | - | 0.1 ± 0.01 | 0.1 ± 0.01 | 0.1 ± 0.01 | - | 0.1 ± 0.01 | 0.1 ± 0.01 | 0.2 ± 0.01 | 0.3 ± 0.01 |
22c | 2-Nonanyl acetate | 1224 | 1220 | - | 0.7 ± 0.01 | - | - | - | - | - | - | tr | 0.2 ± 0.01 | tr | tr |
23 | Decanol | 1263 | 1259 | - | 0.1 ± 0.01 | - | 0.4 ± 0.07 | 0.2 ± 0.01 | 0.8 ± 0.01 | 1.8 ± 0.21 | - | 1.8 ± 0.14 | 2.2 ± 0.14 | 1.4 ± 0.14 | 1.5 ± 0.21 |
23a | trans-Anethol | 1262 | 1260 | - | - | - | - | tr | - | - | - | tr | 0.1 ± 0.01 | tr | tr |
24 | Nonanoic acid | 1263 | 1263 | - | 0.1 ± 0.01 | - | - | - | - | - | - | 0.3 ± 0.07 | 0.4 ± 0.07 | 0.4 ± 0.01 | 0.4 ± 0.01 |
24a | Benzyl isobutyrate | 1269 | 1266 | - | - | - | - | - | - | - | - | - | - | - | - |
24b | Undecan-2-one | 1273 | 1268 | 0.1 ± 0.01 | tr | - | 1.1 ± 0.14 | 0.1 ± 0.01 | - | - | - | 0.2 ± 0.01 | 0.6 ± 0.07 | 0.5 ± 0.01 | 0.5 ± 0.01 |
25 | Undecanal | 1290 | 1280 | - | 0.7 ± 0.21 | 0.2 ± 0.01 | - | - | tr | 0.2 ± 0.01 | - | tr | 0.3 ± 0.01 | 0.2 ± 0.01 | 0.3 ± 0.01 |
26 | Tridecane | 1300 | 1292 | 3.7 ± 0.21 | 7.7 ± 0.85 | 4.0 ± 0.35 | 0.7 ± 0.07 | 0.2 ± 0.01 | 0.1 ± 0.01 | 0.4 ± 0.01 | 0.3 ± 0.07 | 0.2 ± 0.01 | 0.4 ± 0.01 | 0.3 ± 0.01 | 0.4 ± 0.01 |
26a | Isochavicol | 1313 | 1315 | - | - | - | - | 0.1 ± 0.01 | 0.1 ± 0.01 | 0.7 ± 0.01 | - | 0.4 ± 0.07 | 0.1 ± 0.01 | 0.1 ± 0.01 | tr |
27 | n-Octyl isobutyrate | 1329 | 1325 | - | - | - | - | 0.1 ± 0.01 | 0.2 ± 0.01 | 0.1 ± 0.01 | - | - | - | - | - |
28 | Neryl acetate | 1342 | 1336 | - | - | - | 0.6 ± 0.01 | - | - | 0.1 ± 0.01 | - | 0.2 ± 0.01 | 1.1 ± 0.21 | 1.1 ± 0.01 | 1.0 ± 0.14 |
29 | Decannoic acid | 1347 | 1348 | 0.2 ± 0.01 | 0.4 ± 0.01 | 0.4 ± 0.01 | - | - | - | tr | - | tr | 0.2 ± 0.01 | 0.1 ± 0.01 | tr |
30 | Benzyl 2-methyl butyrate | 1360 | 1352 | - | 0.6 ± 0.07 | - | - | tr | - | tr | - | - | - | - | - |
31 | Geranyl acetate | 1362 | 1359 | - | - | - | - | - | - | 0.1 ± 0.01 | - | tr | 0.2 ± 0.01 | 0.2 ± 0.01 | 0.1 ± 0.01 |
33 | α-Copaene | 1379 | 1372 | - | - | - | - | - | - | - | - | 1.6 ± 0.14 | 2.1 ± 0.14 | 4.1 ± 0.01 | 2.6 ± 0.14 |
34 | β-Bourbonene | 1386 | 1376 | - | - | - | - | - | - | - | - | 4.0 ± 0.42 | 3.6 ± 0.21 | 3.7 ± 0.01 | 3.2 ± 0.28 |
35 | Dodecanal | 1389 | 1390 | 29.3 ± 1.2 | 20.6 ± 1.84 | 45.1 ± 1.27 | 55.4 ± 0.99 | 0.4 ± 0.14 | 1.5 ± 0.21 | 4.4 ± 0.14 | 2.1 ± 0.01 | 2.7 ± 0.28 | 1.3 ± 0.21 | 1.2 ± 0.01 | 1.4 ± 0.07 |
36 | Tetradecane | 1400 | 1403 | - | - | - | - | 0.1 ± 0.07 | 0.1 ± 0.01 | 0.2 ± 0.01 | 0.2 ± 0.01 | 0.1 ± 0.01 | 0.2 ± 0.01 | 0.1 ± 0.01 | 0.1 ± 0.01 |
37 | Longifolene | 1411 | 1409 | - | 0.2 ± 0.01 | tr | - | tr | 0.2 ± 0.01 | - | 2.3 ± 0.21 | 0.1 ± 0.01 | 0.1 ± 0.01 | 0.1 ± 0.01 | 0.1 ± 0.01 |
38 | α-Santalene | 1422 | 1415 | - | - | tr | - | - | - | - | tr | 0.1 ± 0.01 | tr | tr | tr |
39 | β-Caryophyllene | 1421 | 1424 | - | - | - | - | 0.8 ± 0.14 | 0.1 ± 0.01 | - | - | 0.7 ± 0.14 | 1.2 ± 0.07 | 0.4 ± 0.01 | 0.8 ± 0.07 |
40 | Dauca-3,8-diene | 1428 | 1426 | - | - | - | - | 0.1 ± 0.01 | - | - | - | - | - | - | - |
41 | trans-α-bergamotene | 1432 | 1432 | - | - | - | - | 0.7 ± 0.01 | 0.2 ± 0.01 | 0.2 ± 0.01 | 0.2 ± 0.01 | 0.2 ± 0.01 | 0.2 ± 0.01 | ||
42 | (E)-β-Farnesene | 1446 | 1443 | - | - | - | - | 0.1 ± 0.01 | 0.1 ± 0.01 | 0.1 ± 0.01 | 0.1 ± 0.01 | 0.2 ± 0.01 | 0.1 ± 0.01 | 0.1 ± 0.01 | |
43 | α-Humulene | 1455 | 1451 | - | - | - | - | 0.4 ± 0.01 | 0.3 ± 0.01 | 1.0 ± 0.01 | 0.3 ± 0.01 | 0.9 ± 0.01 | 0.3 ± 0.01 | 0.4 ± 0.07 | 0.4 ± 0.01 |
45 | Dodecanol | 1472 | 1470 | 2.7 ± 0.01 | 8.8 ± 0.42 | 1.7 ± 0.28 | 4.4 ± 0.35 | 0.2 ± 0.01 | - | - | - | 0.5 ± 0.01 | 0.8 ± 0.21 | 0.9 ± 0.01 | 0.5 ± 0.07 |
46 | α-Curcumene | 1473 | 1474 | - | - | - | - | - | - | - | - | 0.8 ± 0.14 | 0.6 ± 0.01 | 0.9 ± 0.01 | 0.4 ± 0.01 |
47 | Germacrene-D | 1479 | 1478 | 0.2 ± 0.01 | - | - | - | - | - | - | - | 0.8 ± 0.01 | 2.1 ± 0.28 | 3.3 ± 0.01 | 2.1 ± 0.07 |
49 | Zingiberene | 1489 | 1483 | 0.2 ± 0.01 | 0.7 ± 0.14 | 0.4 ± 0.07 | 0.6 ± 0.01 | - | - | - | - | tr | 0.2 ± 0.01 | tr | 0.1 ± 0.01 |
50 | Pentadecane | 1500 | 1497 | 0.1 ± 0.01 | 0.1 ± 0.01 | 0.2 ± 0.01 | 0.2 ± 0.01 | 51.6 ± 1.77 | 12.8 ± 0.49 | 41.2 ± 1.34 | 40.8 ± 0.57 | 11.9 ± 1.06 | 13.1 ± 0.78 | 14.0 ± 0.28 | 16.0 ± 0.42 |
51 | δ-Cadinene | 1520 | 1514 | - | - | - | - | 0.1 ± 0.01 | tr | 1.1 ± 0.01 | 0.3 ± 0.01 | - | - | - | - |
52 | Geranyl butyrate | 1534 | 1530 | tr | 0.1 ± 0.01 | - | 0.2 ± 0.01 | - | 0.6 ± 0.01 | - | - | 0.3 ± 0.01 | 2.0 ± 0.01 | 1.7 ± 0.01 | 1.6 ± 0.21 |
53 | Isochavicol isobutyrate | 1546 | 1541 | 0.4 ± 0.01 | 0.2 ± 0.01 | 0.2 ± 0.01 | 0.2 ± 0.01 | 19.9 ± 0.85 | 10.4 ± 1.13 | 19.0 ± 0.85 | 0.2 ± 0.01 | 0.7 ± 0.14 | 0.4 ± 0.01 | 0.2 ± 0.01 | |
56 | Caryophyllene oxyde | 1578 | 1572 | - | - | - | - | - | - | - | - | 0.1 ± 0.01 | tr | tr | tr |
57 | Dodecyl acetate | 1585 | 1580 | 14.2 ± 0.49 | 32.4 ± 1.70 | 16.4 ± 1.06 | 21.7 ± 0.85 | 0.2 ± 0.01 | 0.3 ± 0.01 | 3.6 ± 0.21 | 5.0 ± 0.21 | 2.3 ± 0.28 | 2.0 ± 0.01 | 2.3 ± 0.21 | 2.6 ± 0.07 |
58 | α-Cedrol | 1603 | 1596 | - | - | - | - | - | 0.1 ± 0.01 | - | - | 1.4 ± 0.21 | 1.0 ± 0.01 | 0.9 ± 0.01 | 0.9 ± 0.07 |
59 | Hexadecane | 1600 | 1599 | - | - | - | - | 0.3 ± 0.01 | 0.1 ± 0.01 | 0.3 ± 0.01 | 0.3 ± 0.01 | 0.5 ± 0.01 | 0.4 ± 0.01 | 0.2 ± 0.01 | 0.3 ± 0.01 |
60 | Isochavicol 2-methyl butyrate | 1651 | 1648 | - | - | - | 0.4 ± 0.01 | 0.1 ± 0.01 | 2.7 ± 0.01 | 2.9 ± 0.01 | 2.1 ± 0.14 | 0.1 ± 0.01 | 0.4 ± 0.01 | 0.3 ± 0.01 | 0.1 ± 0.01 |
60a | Bisabolol oxide B | 1654 | 1650 | - | - | - | - | 0.2 ± 0.01 | tr | 0.1 ± 0.01 | 3.9 ± 0.01 | 2.7 ± 0.01 | 2.1 ± 0.01 | 1.1 ± 0.14 | |
62 | Heptadecane | 1700 | 1703 | 0.1 ± 0.01 | 0.2 ± 0.01 | tr | 0.2 ± 0.01 | 20.7 ± 1.56 | 4.1 ± 0.21 | 11.9 ± 0.35 | 6.4 ± 0.57 | 20.7 ± 0.57 | 13.2 ± 0.42 | 9.0 ± 0.35 | 11.2 ± 0.49 |
63 | Benzyl benzoate | 1730 | 1723 | 0.1 ± 0.01 | 0.7 ± 0.01 | tr | 2.7 ± 0.14 | - | - | 0.3 ± 0.01 | 0.7 ± 0.01 | 0.5 ± 0.07 | 0.2 ± 0.01 | 0.1 ± 0.01 | 0.2 ± 0.01 |
66 | Hexadecanal | 1782 | 1787 | 0.5 ± 0.01 | 0.5 ± 0.01 | 0.5 ± 0.07 | 0.7 ± 0.01 | 0.2 ± 0.01 | 0.1 ± 0.01 | 0.2 ± 0.01 | tr | 0.1 ± 0.01 | tr | tr | 0.2 ± 0.01 |
67 | Neophytadiene | 1807 | 1807 | tr | 0.8 ± 0.01 | tr | 3.2 ± 0.21 | 0.6 ± 0.01 | 0.2 ± 0.01 | 0.1 ± 0.01 | 0.4 ± 0.01 | 0.3 ± 0.01 | tr | 0.1 ± 0.01 | 0.2 ± 0.01 |
% Identification | 96.8 ± 0.57 | 95.4 ± 0.21 | 95.7 ± 0.28 | 95.2 ± 0.07 | 97.3 ± 0.21 | 93.6 ± 0.64 | 93.1 ± 0.21 | 96.3 ± 0.28 | 95.7 ± 0.35 | 92.1 ± 0.07 | 90.9 ± 0.28 | 92.9 ± 0.49 | |||
Total area (105) | 486.4 | 451.3 | 445.5 | 430.2 | 391.8 | 351.9 | 378.3 | 345.6 | 312.5 | 336.1 | 333.8 | 342.8 | |||
Hydrocarbon compounds | 49.4 | 28.4 | 31.2 | 7.3 | 92.8 | 65.1 | 66.9 | 65.4 | 82.8 | 72.9 | 73.9 | 76.4 | |||
Oxygenated compounds | 47.4 | 67.0 | 64.5 | 87.9 | 4.5 | 28.5 | 26.2 | 30.9 | 12.9 | 19.2 | 17.0 | 16.5 | |||
Aliphatic compounds | 96.3 | 91.8 | 95.1 | 88.1 | 90.8 | 42.0 | 75.7 | 69.3 | 49.4 | 46.1 | 42.6 | 49.1 | |||
Phenylpropanoid compounds | 0.1 | 1.8 | 0.2 | 3.3 | 0.7 | 22.8 | 14.4 | 21.8 | 1.3 | 2.5 | 1.9 | 1.8 | |||
Hydrocarbon non-terpenic compounds | 49,0 | 27,4 | 30.8 | 3.5 | 88.7 | 37.1 | 64.2 | 60.8 | 43.8 | 34.2 | 31.3 | 37.3 | |||
Hydrocarbon monoterpenes | - | 0.2 | - | - | 1.3 | 26.9 | 0.5 | 1.2 | 29.4 | 28.0 | 29.4 | 28.9 | |||
Hydrocarbon sesquiterpenes | 0.4 | 0.8 | 0.4 | 0.6 | 2.2 | 0.9 | 2.1 | 3.0 | 9.3 | 10.7 | 13.1 | 10.0 | |||
Hydrocarbon diterpenes | - | - | - | 3.2 | 0.6 | 0.2 | 0.1 | 0.4 | 0.3 | - | 0.1 | 0.2 | |||
Oxygenated non-terpenic compounds | 47,4 | 66.2 | 64.5 | 87.9 | 4.3 | 27.7 | 25.9 | 30.3 | 6.9 | 14.4 | 13.2 | 13.6 | |||
Oxygenated monoterpenes | - | - | - | - | 0.7 | 0.3 | 0.5 | 0.8 | 1.1 | 0.8 | 0.9 | ||||
Oxygenated sesquiterpenes | - | 0.8 | - | - | 0.2 | 0.1 | - | 0.1 | 5.2 | 3.7 | 3.0 | 2.0 |
a Order of elution is given on apolar column (Rtx-1). Numbers correspond to those in table 1. The compounds that the number is followed by a letter were only identified in HS-fractions.
b Retention indices of literature on the apolar column (lRIa) reported from [12-18].
c Retention indices on the apolar Rtx-1 column (RIa).
d Percentages (means of three analyses) obtained by GC-FID (on RTX-1: apolar column) with peak-area normalization under optimized HS-SPME parameters: temperature: 70°C; equilibrium time: 60 min; extraction time: 30 min. Sample locations: Bensekrane (A), Sid Abdeli (B), Terni (C) and Beni Snous (D).
e Total area is expressed in arbitrary units.
£ Compounds identified from commercial data libraries: National Institute of Standards and Technology, 1999 (1b, 12, 15c, 17a, 19d, 20b); and literature data: König WA, Hochmuth DH, Joulain D, 2001 (3a, 13a, 19b, 19c, 24a, 32b, 35, 36, 36a, 38a, 41, 42).