Table 2 Proton NMR peak area integrations at the given ppm ranges, for each sample
Sample | CH x | Total aliphatic | #C-OH/ C-NH | O-CH/ N-CH | Total oxygenated | C = C-H | *Ar-H | *Total aromatic | O = C-H |
|---|---|---|---|---|---|---|---|---|---|
| Â | 0.5-1.8 | 0.5-1.8 | 2.0-3.3 | 3.4-5 | 2-5 | 5-7 | 7-9 | 5-9 | 9-10 |
Whole | 43.0 | 43.0 | 30.4 | 7.0 | 37.4 | 5.5 | 12.3 | 17.8 | 1.8 |
Acid insoluble | 38.9 | 38.9 | 28.0 | 6.8 | 34.8 | 7.1 | 16.7 | 23.8 | 2.5 |
Acid soluble | 38.7 | 38.7 | 36.5 | 7.6 | 44.1 | 4.9 | 11.2 | 16.1 | 1.1 |
C18 Fil:Ret 100:0 | 30.4 | 30.4 | 42.3 | 8.5 | 50.8 | 6.3 | 11.3 | 17.6 | 1.2 |
C18 Fil:Ret 75:25 | 33.5 | 33.5 | 38.8 | 7.3 | 46.1 | 6.0 | 13.2 | 19.2 | 1.2 |
C18 Fil:Ret 50:50 | 36.2 | 36.2 | 34.5 | 7.1 | 41.6 | 6.4 | 14.6 | 21.0 | 1.2 |
C18 Fil:Ret 25:75 | 40.2 | 40.2 | 32.3 | 5.2 | 37.5 | 6.2 | 15.0 | 21.2 | 1.1 |
C18 Fil:Ret 0:100 | 41.2 | 41.2 | 30.3 | 5.3 | 35.6 | 6.3 | 15.9 | 22.2 | 1.0 |