| Band position (cm-1) | Functional group |
|---|---|
| 3450-3400 | O-H group |
| 2930-2910 | C-H methyl and methylene groups, surface wax |
| 1740-1730 | C=O carbonyls |
| 1640-1618 | C=C alkene |
| 1515-1504 | C=C aromatic |
| 1462-1425 | CH2 cellulose, lignin |
| 1384-1346 | C-H cellulose, hemicellulose |
| 1260-1234 | O-H phenolic |
| 1170-1153 | O-H alcohols(primary and secondary) and aliphatic ethers |
| 1046-1018 | C-C, C-OH, C-H ring and side group vibrations |
| 910 | C=C alkenes |