Table 2 Location and substance assignment of characteristic peaks in Raman spectra.
Serum spectral wavenumber | Corresponding substance | Urine spectral wavenumber | Corresponding substance |
---|---|---|---|
728 | C–C stretching, proline (collagen assignment) | 630 | Glycerol |
842 | Glucose | 918 | Proline, hydroxyproline Glycogen and lactic acid |
980 | C–C stretching b-sheet (proteins) CH bending (lipids) | 980 | C–C stretching b-sheet (proteins) CH bending (lipids) |
1316 | Guanine (B,Z-marker) | 1051 | Lipids |
1439 | CH2 bending mode in normal tissueCH3, CH2 deformation CH2 scissoring CH2 deformation in normal breast tissue | 1316 | Guanine (B,Z-marker) |
1650 | (C=C) Amide I Protein amide I absorption Amide I | 1657 | Fatty acids Amide I (collagen assignment) Triglycerides (fatty acids) |