Table 1 Spectral regions and molecular assignments

1

3358–3188

Bond N-H (Amide A and B), bond O-H cholesterol

[21,22,23]

2

3011–2816

Bond C-H, lipids, proteins

[21, 22]

3

1796–1685

C = O from lipids, aldehyde groups

[21, 22, 24]

4

1687–1574

Amide I

[21]

5

1574–1478

Amide II

[21]

6

1484–1420

Lipids, cholesterol

[21, 22]

7

1427–1356

Proteins

[21]

8

1332–1211

Amide III, proteins

[21]

9

1195–1133

Carbohydrates, phosphate groups (phospholipids), nucleic acids and amino acids

[21, 22]

10

1106–1046

Carbohydrates, phosphate groups (phospholipids), nucleic acids and amino acids

[21, 22]

11

964–905

Carbohydrates, phosphate groups (phospholipids), nucleic acids and amino acids

[21, 22]