Table 2.
Peaks results of the FTIR spectra for bitter apricot seed kernel oil.
| Wavenumber (cm−1) | Main attribution | Link type | Vibration mode |
|---|---|---|---|
| 447.75 | Aryl sulfide | S-S | Stretch |
|
| |||
| 478.31 | Poly sulfide | S-S | Stretch |
| Aryl sulfide | S-S | Stretch | |
|
| |||
| 721.33 | Aliphatic chloro compound | C-Cl | Stretch |
| Aromatic hydrocarbon | C-H (out of plane) | Bend | |
| Methylene | (CH2)n | Rocking | |
|
| |||
| 1049.2 | Primary amine | CN | Stretch |
| Aliphatic phosphate | P-O-P | Stretch | |
| Silicon | Si-O-Si | ||
| Silicate ion | |||
| Cyclohexane ring | |||
| Aliphatic fluoro compounds | C-F | Stretch | |
|
| |||
| 1091.63 | Organic siloxane | Si-O-Si | |
| Silicon | |||
| Silicate ion | |||
| Sulfate ion | |||
| Phosphate ion | |||
| Aromatic hydrocarbon | C-H (in plane) | Bend | |
| Aliphatic fluoro compound | C-F | Stretch | |
| Cyclic ether large ring | C-O | Stretch | |
| Alkyl-substituted ether | C-O | Stretch | |
|
| |||
| 1161.07 | Sulfonate | ||
| Tetra amine | CN | Stretch | |
| Cyanate | C-OCN | Stretch | |
| Secondary amine | CN | Stretch | |
| Tertiary amine | CN | Stretch | |
|
| |||
| 1234.36 | Aromatic ether | Aryl-O | Stretch |
| Aromatic phosphate | P-O-C | Stretch | |
|
| |||
| 1377.08 | Methyl | C-H asym | Stretch |
| Organic sulfate | |||
| Nitrate ion | |||
| Aliphatic nitro carbon | |||
|
| |||
| 1458.08 | Carbonate ion | ||
| Aromatic ring | C=C-C | Stretch | |
| Methylene | C-H | Bend | |
| Methyl asym | C-H | Bend | |
|
| |||
| 1743.53 | Aromatic ring | Bend | |
| Ester | |||
| Alkyl carbonate | |||
|
| |||
| 2854.45 | Methylene asym | C-H | Stretch |
|
| |||
| 2923.88 | Methylene | C-H asym | Stretch |