• Kết quả hàng đầu từ thư viện: pentane-2,3-dione #120

• Pentane-2,3-dione, the low-confidence library match, would be expected to exhibit a strong carbonyl band around 1710–1720 cm⁻¹, which is not prominent in the sample spectrum. This suggests the library match is not representative of the sample.
• The exact composition (protein vs. synthetic polyamide) cannot be determined solely from FTIR; overlapping bands from multiple components may contribute.
• The absence of a well-resolved carbonyl band >1700 cm⁻¹ makes a simple ketone/diketone identification unlikely, but the presence of minor carbonyl features cannot be completely excluded.

Các bước tiếp theo được khuyến nghị: Perform additional analytical techniques such as amino acid analysis, MALDI-TOF mass spectrometry, or NMR spectroscopy to confirm the proteinaceous or polyamide nature. If historical or archaeological context suggests a binder, consider comparison with reference proteinaceous glues and polyamide standards.