Table 3 The main peak positions and preliminary attribution of IR spectra in 99 patients with and without thyroid metastasis. The following information is from LibreTexts and is shared under a CC BY-NC-SA 4.0 license. From LibreTexts. (n.d.). Infrared Spectroscopy Absorption Table. Retrieved from https://chem.libretexts.org/@go/page/22645.

From: Multimodal separation and cross fusion network based on Raman spectroscopy and FTIR spectroscopy for diagnosis of thyroid malignant tumor metastasis

Peak position(cm-1)

Initial attribution

1080

DNA,RNA(C-O)

1243

vas(PO-2) of nucleic acid

1314

Amide III

1400

v(COO-) of amino acid

1455

CH3

1540

(N–H) of amide II band

1647

Amide I

2867

CH2

2931

CH2

2959

CH3

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