Table 1 GC–MS results for crude biodiesel separated from glycerol after gravitational settling
Peak number | Retention time, tR | Library/ID (systematic name) | Trivial name | Types of fatty acids | Composition of FAME% (purity) |
|---|---|---|---|---|---|
1 | 12.870 | Dodecanoic acid | Lauric | Saturated | 0.31 |
2 | 15.092 | Tetradecanoic acid | Myristic | Saturated | 1.22 |
4 | 17.128 | Hexadecanoic acid | Palmitic | Saturated | 35.08 |
6 | 17.375 | 9-Hexadecenoic acid | Palmitoleic | Unsaturated | 0.25 |
9 | 18.973 | Octadecanoic acid | Stearic | Saturated | 6.03 |
10 | 19.173 | 9-Octadecenoic acid | Oleic | Unsaturated | 40.54 |
12 | 19.572 | 9,12-Octadecadienoic acid | Linoleic | Unsaturated | 14.41 |
15 | 20.13 | 9,12,15-Octadecatrienoic acid | Linolenic | Unsaturated | 0.23 |
17 | 20.684 | Eicosanoic acid | Arachidic | Saturated | 0.61 |
Total | 98.96% | ||||