## 2 Results and Discussion
### Identification of ARR VOCs In Vivo in Rats
\({}^{\text{a}}\)** & **Name of Compounds** & **CAS \({}^{\text{b}}\)** & **t\({}_{\text{R}}\) (min)** & **MW \({}^{\text{c}}\)** & **Formula** & **RI \({}^{\text{d}}\)** & **Identification \({}^{\text{e}}\)** \\ \hline
**M1** & \(\alpha\)-Pineine & 80-56-8 & 3.785 & 136 & C\({}_{10}\)H\({}_{16}\) & 1021 & MS, RI \\
**M2** & Camphene & 79-92-5 & 4.375 & 136 & C\({}_{10}\)H\({}_{16}\) & 1060 & MS, RI \\
**M3** & \(\beta\)-Pine & 127-91-3 & 4.955 & 136 & C\({}_{10}\)H\({}_{16}\) & 1099 & MS, RI, REF \\
**M4** & Sabinene & 3387-41-5 & 5.175 & 136 & C\({}_{10}\)H\({}_{16}\) & 1110 & MS, RI \\
**M5** & 3-Carene & 13466-78-9 & 5.700 & 136 & C\({}_{10}\)H\({}_{16}\) & 1135 & MS, RI, \\
**M6** & \(\beta\)-Myrcene & 123-35-3 & 6.080 & 136 & C\({}_{10}\)H\({}_{16}\) & 1154 & MS, RI \\
**M7** & \(d\)-4-Carene & 29050-33-7 & 6.405 & 136 & C\({}_{10}\)H\({}_{16}\) & 1170 & MS, RI \\
**M8** & Limonene & 138-86-3 & 6.830 & 136 & C\({}_{10}\)H\({}_{16}\) & 1191 & MS, RI, REF \\
**M9** & Eucalypt & 470-82-6 & 7.095 & 154 & C\({}_{10}\)H\({}_{18}\)O & 1203 & MS, RI \\
**M10** & \(\alpha\)-Cyrene & 527-84-4 & 8.630 & 134 & C\({}_{10}\)H\({}_{14}\) & 1267 & MS, RI \\
**M11** & Terpinolene & 586-62-9 & 8.895 & 136 & C\({}_{10}\)H\({}_{16}\) & 1279 & MS, RI \\
**M12** & Tridecane & 629-50-5 & 9.217 & 184 & C\({}_{13}\)H\({}_{28}\) & 1293 & MS, RI, REF \\
**M13** & Acetoin & 513-86-0 & 9.328 & 88 & C\({}_{4}\)H\({}_{8}\)O\({}_{2}\) & 1298 & MS, RI \\
**M14** & P-Cymenene & 1195-32-0 & 12.885 & 132 & C\({}_{10}\)H\({}_{12}\) & 1433 & MS, RI \\
**M15** & _cis_-Limonene oxide & 13837-75-0 & 13.135 & 152 & C\({}_{10}\)H\({}_{16}\)O & 1441 & MS, RI \\
**M16** & _cis_-4-Thujanol & 15537-55-0 & 13.795 & 154 & C\({}_{10}\)H\({}_{16}\)O & 1462 & MS, RI \\
**M17** & 2-Nonen-4-one & 32064-72-5 & 14.270 & 140 & C\({}_{6}\)H\({}_{16}\)O & 1477 & MS, RI \\
**M18** & \(\alpha\)-Copane & 3856-25-5 & 14.485 & 204 & C\({}_{15}\)H\({}_{24}\) & 1485 & MS, RI \\
**M19** & Pentadecane & 629-62-9 & 14.953 & 212 & C\({}_{15}\)H\({}_{29}\) & 1500 & MS, RI \\
**M20** & _d_-Campphor & 76-22-2 & 15.305 & 152 & C\({}_{10}\)H\({}_{10}\)O & 1507 & MS, RI \\
**M21** & 1-Pentadecene & 13360-61-7 & 16.070 & 210 & C\({}_{15}\)H\({}_{30}\) & 1523 & MS, RI \\
**M22** & Eucarvone & 503-93-5 & 17.060 & 150 & C\({}_{10}\)H\({}_{14}\)O & 1543 & MS, REF \\
**M23** & _l_-Aristolene & 6831-16-9 & 17.560 & 204 & C\({}_{15}\)H\({}_{24}\) & 1553 & MS, RI \\
**M24** & Isoplelogol & 89.79-2 & 17.720 & 154 & C\({}_{10}\)H\({}_{18}\)O & 1556 & MS, RI \\
**M25** & \(\beta\)-Copane & 1825-44-3 & 18.115 & 204 & C\({}_{15}\)H\({}_{24}\) & 1565 & MS, RI \\
**M26** & Bornyl acetate & 76-49-3 & 18.305 & 196 & C\({}_{12}\)H\({}_{20}\)O\({}_{2}\) & 1568 & MS, RI \\
**M27** & 1(10)-Aristolene & 17334-55-3 & 18.760 & 204 & C\({}_{15}\)H\({}_{24}\) & 1577 & MS, RI \\
**M28** & Frenchol & 1632-73-1 & 18.920 & 154 & C\({}_{10}\)H\({}_{18}\)O & 1581 & MS, RI \\
**M29** & Thymol methyl ether & 1076-56-8 & 19.390 & 164 & C\({}_{11}\)H\({}_{16}\)O & 1590 & MS, RI \\
**M30** & _l_-Aristolene isomer & 19.650 & 204 & C\({}_{15}\)H\({}_{24}\) & 1596 & MS \\
**M31** & \(\beta\)-Cyclocitral & 432-25-7 & 20.510 & 152 & C\({}_{10}\)H\({}_{16}\)O & 1610 & MS, RI \\
**M32** & Methyl benzoate & 93-58-3 & 20.816 & 136 & C\({}_{8}\)H\({}_{9}\)O\({}_{2}\) & 1615 & MS, RI \\
**M33** & _l_-Menthol & 2216-51-5 & 21.220 & 156 & C\({}_{10}\)H\({}_{20}\)O & 1621 & MS, RI \\
**M34** & \(\delta\)-Guaine & 3691-11-0 & 21.535 & 204 & C\({}_{15}\)H\({}_{24}\) & 1626 & MS, RI \\
**M35** & Umbellulone & 24545-81-1 & 21.815 & 150 & C\({}_{10}\)H\({}_{14}\)O & 1630 & MS, RI \\
**M36** & _l_-Pinocarveol & 547-61-5 & 23.120 & 152 & C\({}_{10}\)H\({}_{16}\)O & 1651 & MS, RI \\
**M37** & Estragole & 140-67-0 & 23.905 & 148 & C\({}_{10}\)H\({}_{12}\)O & 1663 & MS, RI, REF \\
**M38** & Isomenthol & 490-99-3 & 24.295 & 156 & C\({}_{10}\)H\({}_{20}\)O & 1670 & MS, RI \\
**M39** & Verbenol & 473-67-6 & 24.570 & 152 & C\({}_{10}\)H\({}_{10}\)O & 1674 & MS, RI \\
**M40** & Eucarvone isomer & 24.990 & 150 & C\({}_{10}\)H\({}_{14}\)O & 1680 & MS \\
**M41** & Verbenone & 80-57-9 & 25.240 & 150 & C\({}_{10}\)H\({}_{4}\)O & 1684 & MS, RI \\
**M42** & \(\alpha\)-Terpinol acetate & 80-26-2 & 25.300 & 196 & C\({}_{12}\)H\({}_{20}\)O & 1685 & MS, RI \\  
\begin{table}
\begin{tabular}{l c c c c c c c} \hline \hline
**No.