SERS peak positions and vibrational mode assignments.^9,27–30.

Peak position (cm−1)	Vibrational mode	Major assignments
593		l-Tryptophan
638	ν(C–S)	l-Tyrosine, lactose, acetoacetate
725	C–H	Adenine, acetyl coenzyme A
744		Riboflavin
767		Thymine
810		l-Serine
886	δ(C–O–H)	d-(C)-galactosamine, glutathione
955	ν(C–C)	α-Helix, proline
1006	ν s(C–C)	l-Phenylalanine, l-tryptophan, acetoacetate
1071		β-d-glucose, lactose
1134	ν(C–N)	l-Arginine, d-mannose
1204		l-Tryptophan
1334	ν(C–H)	Nucleic acid bases
1408		l-Histidine, l-alanine, coenzyme A
1495–1500		Glycine, riboflavin
1580	δ(C C)	Acetoacetate
1654	ν(C O)	α-Helix, collagen, triolein