Biomedical Engineering Reference
In-Depth Information
Table 8.1 (
Continued
)
Major Characteristic
Peak Frequencies Reported in the Literature
Reference
Number
Peak
Assignment
FT-IR
Raman
Stretching C-N, deformation
N-H, deformation C-H
*
66, 67, 88
δ[C(CH
3
)
2
] symmetric
*
48
*
77
1402 cm
−1
CH
α,α'
rocking
*
6
δ
s
(CH
3
) ω(CH
2
)
*
1
1403 cm
−1
Symmetric CH
3
bending modes
of the methyl groups of proteins
*
66
δ[(CH3)] sym.
δ
s
CH
3
of collagen
*
68
δ[C(CH
3
)
2
] symmetric
*
51
*
77
1404 cm
−1
Urea/triglycerides, which are
abundant in the plasma
*
30
1404/5 cm
−1
CH
3
asymmetric deformation
*
95
1406 cm
−1
ν
s
COO
−
(IgG?)
*
43
1407 cm
−1
Sciss. (CH
2
)
*
1
1409 cm
−1
ν
s
COO
−
(IgG?)
*
43
1412 cm
−1
Ring stretch
*
14
1412/4 cm
−1
Stretching C-N, deformation
N-H, deformation C-H
*
48
Ring stretch
*
14
1416 cm
−1
Deformation C-H, N-H,
stretching C-N
*
48
1417 cm
−1
Stretching C-N, deformation
N-H, deformation C-H
*
48
C= C stretching in quinoid ring
*
28
1418 cm
−1
CH
2,6,7,α
rock
*
6
1418/9 cm
−1
Deformation C-H
*
23
1419 cm
−1
ν
s
(COO
−
) (polysaccharides,
pectin)
*
7
1420-50 cm
−1
CH
2
scissoring vibration (lipid
band)
*
29, 30
1420-70 cm
−1
(prominent peak at 1445 cm
−1
is
of diagnostic significance)
*
42
CH
2
bending mode of proteins &
lipids
1420/1 cm
−1
Deoxyribose, (B, Z-marker)
*
21
1421 cm
−1
A, G (ring breathing modes of the
DNA/RNA bases)
*
12
1422 cm
−1
CH
2,6,7,α
rock
*
6
Deoxyribose, (B, Z-marker)
*
21
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