Table 1.

Dominant peak positions (in cm^-1) of the molecular standards and their assignments to vibrations of specific atomic bonds, categorized as either stretching (s), or bending (b) modes (Wen et al., 1997; Wen and Thomas, 1998).

Nucleobase	Simple NB	dNTP	DNA/RNA	Assignment
A	1291	1322	1314	C8H (b), C8N7 (s)
C	1512	1523	1508	N3C4 (s)
G	1440	1474	1462	C8H (b), N9C8 (s)
T	1647	1651	1634	C4 = O (s), C5C7 (s)
U	1210	1214	1203	C5H (b), N3C4 (s)
Amino acids	Phe	Trp	Tyr
	1595	1610	1591	Benzene (s)