FTIR and Raman Characteristic Peak Frequencies in Biological Studies - Vibrational Spectroscopy for Tissue Analysis - page 241

Table 8.1 ( Continued )
Major Characteristic Peak Frequencies Reported in the Literature

Reference
Number Peak Assignment FT-IR Raman

Phospholipid structural changes
( trans versus gauche isomerism)
Acyl chains

* 40

Haemoglobin * 2

* 60

1130-460 cm −1 CH 3 deformations (both

symmetric and asymmetric)

* 1

1131 cm −1 Palmitic acid * 2

Fatty acid * 2

1137 cm −1 Oligosaccharide C-OH stretching

band

* 56

2-methylmannoside * 56

1138 cm −1 Adenine (ring breathing modes of

the DNA/RNA bases)

* 4

1144 cm −1 Ring stretch, in-plane CH bend * 14

1145 cm −1 Phosphate and oligosaccharides * 56

Oligosaccharide C-O bond in
hydroxyl group that might
interact with some other
membrane components
Membrane-bound
oligosaccharide C-OH bond

1149 cm −1 Carbohydrates peak for solids * 24

1150 cm −1 C-O stretching vibration 52

Glycogen * 24

C-O stretching mode of the
carbohydrates

* 51

Carotenoid * 25

CH 8 , CH” 8 deformations * 6

ν(C-O-C), ring (polysaccharides,
pectin)

* 7

1150-200 cm −1 Phosphodiester stretching bands

(sym. and asym.)

* 40

1151 cm −1 Glycogen absorption due to C-O

and C-C stretching and C-O-H
deformation motions

* 50

1152 cm −1 ν(C-N), proteins (protein

assignment)

* 20

ν(C-C), carotenoid * 20

Carotenoid peaks due to C-C and
conjugated C= C band stretch

* 20

CH 8 , CH” 8 deformations * 6

( Continued )