## 3 Results and Discussion
### Volatile Compounds Analysis
**} & \multirow{2}{*}{**Compound**} & \multirow{2}{*}{**Retention**} & \multirow{2}{*}{**CAS**} & \multicolumn{5}{c}{**Concentration (ng/g)**} \\ \cline{5-9}  & & **Time (min)** & & **BHCH \({}^{*}\)** & **SXZH \({}^{*}\)** & **FXZH \({}^{*}\)** & **LTWH \({}^{*}\)** & **FZWH \({}^{*}\)** \\ \hline B16 & Butanal, 3-methyl- & 3.36 & 590-86-3 & n.d. & n.d. & \(1355.17\pm 1.67\) & \(505.52\pm 0.41\) & \(1180.72\pm 1.71\) \\ \hline B17 & Heptanal & 9.98 & 111-71-7 & n.d. & n.d. & \(612.11\pm 1.30\) & \(90.94\pm 0.59\) & \(1409.99\pm 1.30\) \\ \hline B18 & cis-4-Decneal & 24.94 & 21662-9-9 & n.d. & n.d. & n.d. & n.d. & \(103.17\pm 3.64\) \\ \hline \multicolumn{9}{l}{**Alkanes**} \\ \hline C1 & Heptane, 2,4-dimethyl- & 3.89 & 2213-23-2 & \(2940.23\pm 14.08\) & n.d. & n.d. & n.d. & n.d. \\ \hline C2 & Cyclopentane, butyl- & 11.31 & 2040-95-1 & \(128.67\pm 3.02\) & \(405.44\pm 4.01\) & n.d. & n.d. & n.d. \\ \hline C3 & Dodecane & 25.54 & 112-40-3 & \(96.5\pm 3.07\) & \(355.99\pm 4.12\) & \(115.11\pm 1.73\) & \(5.85\pm 0.36\) & \(84.06\pm 3.67\) \\ \hline C4 & Pentadecane & 23.48 & 629-62-9 & \(20.37\pm 1.86\) & n.d. & \(91.36\pm 1.75\) & n.d. & n.d. \\ \hline C5 & Tetadecane & 39.64 & 629-59-4 & \(13.94\pm 1.86\) & \(174.7\pm 2.51\) & \(169.93\pm 1.68\) & \(10.03\pm 0.62\) & \(31.84\pm 2.16\) \\ \hline C6 & Heptadecane & 43.86 & 629-78-7 & \(8.58\pm 1.85\) & \(192.83\pm 4.50\) & \(69.43\pm 1.77\) & n.d. & n.d. \\ \hline C7 & Hexane, 2,4-dimethyl- & 6.18 & 589-43-5 & n.d. & \(4748.34\pm 18.47\) & n.d. & n.d. & n.d. \\ \hline C8 & Tridecane & 34.18 & 629-50-5 & n.d. & \(257.1\pm 4.35\) & \(155.31\pm 1.69\) & \(4.6\pm 0.36\) & n.d. \\ \hline C9 & Heptane, 2,4,6,6-pentamethyl- & 13.99 & 13475-82-6 & n.d. & n.d. & \(518.92\pm 1.38\) & \(723.78\pm 0.31\) & n.d. \\ \hline C10 & Nonane, 2,2,4,6,6,8- & 15.84 & 4390-4-9 & n.d. & n.d. & \(126.08\pm 1.72\) & n.d. & n.d. \\ \hline C11 & Hexadecane & 46.79 & 544-76-3 & n.d. & n.d. & \(91.36\pm 1.75\) & \(7.11\pm 0.36\) & n.d. \\ \hline C12 & Dodecane, 2,6,10-trimethyl- & 38.50 & 3891-98-3 & n.d. & n.d. & \(68.22\pm 1.00\) & \(2.09\pm 0.36\) & \(49.67\pm 3.73\) \\ \hline C13 & Henicosane & 46.78 & 629-94-7 & n.d. & n.d. & n.d. & \(8.15\pm 0.62\) & \(106.99\pm 3.63\) \\ \hline C14 & Octadecane & 43.84 & 593-45-3 & n.d. & n.d. & n.d. & \(2.72\pm 0.36\) & \(72.6\pm 3.69\) \\ \hline \multicolumn{9}{l}{**Kotones**} \\ \hline D1 & 2-Heptanone & 9.37 & 110-43-0 & \(1291.03\pm 3.03\) & \(979\pm 2.68\) & n.d. & n.d. & \(202.51\pm 3.46\) \\ \hline D2 & 2-Nonanone & 19.09 & 821-55-6 & \(975.78\pm 3.48\) & \(1166.89\pm 2.24\) & n.d. & \(21.12\pm 0.35\) & n.d. \\ \hline D3 & 3-Octanone & 13.75 & 106-68-3 & \(839.6\pm 1.95\) & n.d. & n.d. & n.d. & n.d. \\ \hline D4 & 2(3H)-Furanone, & 16.94 & 695-6-7 & \(79.87\pm 3.10\) & n.d. & \(21.09\pm 1.81\) & \(135.47\pm 0.57\) & n.d. \\ \hline D5 & 2-Hexanone & 5.83 & 591-78-6 & \(270.21\pm 2.81\) & \(266.99\pm 4.33\) & n.d. & n.d. & n.d. \\ \hline D6 & Dihydro-5-pentyl-2(3H)- & 37.37 & 104-61-0 & \(70.77\pm 3.11\) & \(326.33\pm 4.19\) & \(96.84\pm 1.74\) & \(13.59\pm 0.36\) & \(133.73\pm 3.58\) \\ \hline D7 & 2-Decanone & 24.81 & 693-54-9 & \(50.4\pm 1.79\) & \(405.44\pm 4.01\) & n.d. & n.d. & n.d. \\ \hline D8 & 5-Butyldidyno-2(3H)- & 29.71 & 104-50-7 & \(47.18\pm 1.80\) & \(375.77\pm 4.07\) & \(102.32\pm 1.74\) & \(12.96\pm 0.36\) & \(30.56\pm 3.77\) \\ \hline D9 & 2(3H)-Furanone, & 22.04 & 105-21-5 & \(34.31\pm 1.81\) & n.d. & \(11.56\pm 1.82\) & \(15.02\pm 0.62\) & n.d. \\ \hline D10 & 2-Tetadecanone & 18.63 & 2345-27-9 & n.d. & \(598.27\pm 3.56\) & n.d. & n.d. & n.d. \\ \hline D11 & Acetophenone & 17.71 & 98-86-2 & n.d. & \(187.88\pm 4.51\) & \(70.65\pm 1.00\) & n.d. & n.d. \\ \hline D12 & Amyl cyclopentenone & 21.49 & 4819-67-4 & n.d. & \(184.59\pm 2.49\) & n.d. & n.d. \\ \hline D13 & 3,5-Octadiene-2-one & 17.97 & 38284-27-4 & n.d. & n.d. & \(184.55\pm 1.67\) & n.d. & n.d. \\ \hline D14 & 3,5-Octadiene-2-one, (E,E)- & 19.18 & 30086-02-3 & n.d. & n.d. & \(158.97\pm 1.69\) & n.d. & \(412.68\pm 3.08\) \\ \hline \multicolumn{9}{l}{**Alkanes**} \\ \hline C1 & Octanoic acid, ethyl ester & 25.17 & 106-32-1 & n.d. & n.d. & n.d. & \(103.17\pm 3.05\) \\ \hline E2 & Butanoic acid, ethyl ester & 8.00 & 108-64-5 & n.d. & \(370.83\pm 4.09\) & \(363.61\pm 1.52\) & n.d. & n.d. \\ \hline E3 & Heptanoic acid, ethyl ester & 19.47 & 106-30-9 & n.d. & \(Fifteen alcohols were detected across the samples.