Table 1.
Vibrational absorption bands of skin found within the tuning range of the QCL according to literature [30–33]. Used abbreviations: v = very, m = medium, w = weak and ν = stretch. The numbering 1 to 3 indicates their possible contribution to the absorption peaks observed in the skin spectra displayed in Figure 7(b).
| Frequency [cm−1] | Assignment | Strength | Contribution |
|---|---|---|---|
| 1020 | albumin absorption | vw | - |
| 1034 | α & β D-glucose absorption | m | 1 |
| 1035 | ν(CC) skeletal cis conformation | m | 1 |
| 1047 | ν(C-OP) | w | 2 |
| 1052 | albumin absorption | w | 2 |
| 1054 | α D-glucose absorption | vw | 2 |
| 1077 | ν(CC) skeletal trans conformation | m | 3 |
| 1080 | symmetric | m | 3 |
| 1080 | β D-glucose absorption | m | 3 |