Table 2 Percentage of total ion chromatogram (TIC) peak areas and number of peaks for each molecular ions observed in the TD-GC/MS analysis of monoterpenes.
CIS Temperature | Parent (M = 136) | M = 132^ | M = 134 | Other M = 136 | M = 138^ | M = 150 | M = 152 | M = 154^ | |
|---|---|---|---|---|---|---|---|---|---|
α-Pinene | 100 C | 42.6 | ND | 10.0 | 12.7 | ND | 3.7 | 31.0 | ND |
150 C | 78.7 | ND | 4.1 | 5.9 | ND | 1.9 | 9.3 | ND | |
200 C | 60.4 | ND | 9.4 | 9.4 | ND | 4.5 | 16.3 | ND | |
Average | 60.6 | NA | 7.8 | 9.3 | NA | 3.4 | 18.9 | NA | |
# of Peaks | NA | NA | (5) | (2) | NA | (2) | (4) | NA | |
β-Pinene | 100 C | 74.1 | ND | 1.6 | 7.3 | 3.1 | 4.8 | 9.0 | ND |
150 C | 73.4 | ND | 0.4 | 9.9 | 2.4 | 5.0 | 8.8 | ND | |
200 C | 52.4 | ND | 1.0 | 11.7 | 6.6 | 9.4 | 18.9 | ND | |
Average | 66.7 | NA | 1.0 | 9.6 | 4.0 | 6.4 | 12.3 | NA | |
# of Peaks | NA | NA | (2) | (5) | (1) | (2) | (3) | NA | |
Myrcene | 100 C | 97.5 | ND | ND | 2.5 | ND | ND | ND | ND |
150 C | 98.0 | ND | 0.0 | 1.9 | ND | ND | ND | ND | |
200 C | 97.8 | ND | 0.2 | 2.1 | ND | ND | ND | ND | |
Average | 97.8 | NA | 0.1 | 2.2 | NA | NA | NA | NA | |
# of Peaks | NA | NA | (1) | (3) | NA | NA | NA | NA | |
Limonene | 100 C | 83.9 | ND | 1.1 | ND | ND | 3.8 | 11.1 | ND |
150 C | 93.3 | 0.2 | 1.2 | 0.2 | ND | 1.8 | 3.4 | ND | |
200 C | 92.0 | 0.4 | 1.5 | 0.1 | ND | 2.3 | 3.7 | ND | |
Average | 89.7 | 0.3 | 1.3 | 0.2 | NA | 2.6 | 6.1 | NA | |
# of Peaks | NA | (1) | (2) | (1) | NA | (2) | (9) | NA | |
Terpinolene | 100 C | 13.1 | 3.7 | 3.3 | ND | ND | 14.3 | 55.3 | 8.8 |
150 C | 27.6 | 6.1 | 3.1 | ND | ND | 13.3 | 41.5 | 7.2 | |
200 C | 11.4 | 23.9 | 6.5 | ND | ND | 35.8 | 14.1 | 7.9 | |
Average | 17.4 | 11.2 | 4.3 | NA | NA | 21.1 | 37.0 | 7.9 | |
# of Peaks | NA | (1) | (4) | NA | NA | (1) | (5) | (1) |