Table 1 The peak positions and assignment of Raman spectra.

From: Preliminary study on the optical diagnosis of orbital rhabdomyosarcoma by Raman spectroscopy

Raman peaks (cm−1)

Assignment

721

C-N band in nucleic acid

758

aromatic ring of tryptophan

831

DNA (PO2 asymmetric stretching), tyrosine

853

ν(C–C) of proline

936

ν(C–C) in α-conformation of proline

960

sterol ring stretch of cholesterol

1002

νs(C–C) ring breathing of phenylalanine

1032

ν(C–C) of phenylalanine

1088

nucleic acids backbone (PO2 symmetric stretching)

1127

ν(C–C) skeletal of acyl backbone in lipid

1156

ν(C=C) stretching mode in carotenoid

1173

C–C stretching of cholesterol, fatty acids—HO

1206

ν(C–C6H5) of tryptophan and phenylalanine

1340

δ(CH2CH3) of proteins and nucleic acids

1450

δ(CH2) of phospholipids and collagen

1526

ν(–C=C–) of carotenoid

1655

C=C stretching of lipids (unsaturated fatty acids)