Official Journal of the Japan Wood Research Society
Table 2 Main compositions and concentrations of MTBE extractives
Peak no. | Retention time (min) | Compound | Concentration (mg/mL) |
|---|---|---|---|
1 | 2.812 | Lactic acid | 1.189 |
2 | 2.974 | Glycolic acid | 0.722 |
3 | 3.731 | 3-Hydroxypropionic acid | 0.657 |
4 | 4.989 | 2-Hydroxyisocaproic acid | 0.320 |
5 | 5.046 | 2-Hydroxy-3-methylpentanoic acid | 0.138 |
6 | 5.440 | Benzoic acid | 0.860 |
7 | 6.513 | Succinic acid | 0.477 |
8 | 8.927 | Salicyl alcohol | 0.224 |
9 (interior label) | 11.581 | Undecanoic acid | 0.277 |
10 | 13.274 | P-hydroxybenzoic acid | 12.231 |
11 | 16.113 | Vanillic acid | 0.293 |
12 | 16.767 | Azelaic acid | 0.204 |
13 | 18.842 | Syringic acid | 0.098 |
14 | 21.595 | Palmitic acid | 0.730 |
15 | 24.545 | Linoleic acid | 1.253 |
16 | 24.651 | Linoleic acid | 0.410 |
17 | 25.094 | Stearic acid | 0.153 |
18 | 27.541 | Dehydroabietic acid | 0.173 |
19 | 30.529 | Hexadecanoic acid glyceride | 0.130 |
20 | 31.331 | Behenic acid | 0.194 |
21 | 32.749 | Lignoceric acid | 0.105 |
22 | 34.121 | Lignoceric acid | 0.256 |
23 | 35.368 | Cerotic acid | 0.169 |
24 | 36.342 | Cerotic acid | 0.306 |
25 | 37.276 | Octacosanoic acid | 0.165 |
26 | 37.640 | Glycerol | 0.165 |
27 | 38.206 | Lignoceric acid | 0.104 |
28 | 39.446 | Stigmasterol | 1.243 |
29 | 40.334 | Beta-amyrin | 0.361 |
30 | 41.108 | Cyclolaudenol | 0.322 |
31 (interior label) | 42.417 | Lupa-13(18),22-dien-3-ol,acetate | 0.167 |