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| Wavenumber (cm−1) | Definition of the Spectral Assignment |
|---|---|
| 3014 | Olefinic=CH stretching vibration: unsaturated lipids, cholesterol esters. |
| 2962 | CH3 antisymmetric stretching: equal contribution of lipids, and proteins, carbohydrates, nucleic acids. |
| 2929 | CH2 antisymmetric stretching: mainly lipids, with the little contribution from proteins, carbohydrates, nucleic acids |
| 2855 | CH2 symmetric stretching: mainly lipids, with the little contribution from proteins, carbohydrates, nucleic acids |
