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當前的 FTIR 圖譜匹配太弱,無法進行明確的化合物層級歸屬。該樣品更安全地描述為一種含氧有機材料,顯示酯類羰基吸收以及 C–O 伸縮譜帶,且可能包含甲基豐富的含矽組分。最近的譜庫命中是 1-甲氧基丙-2-基乙酸酯,但檢索置信度實際上不存在,因此該名稱應僅視為最接近的譜庫標籤,而非鑑定結果。
建議的下一步: Check for additional FTIR bands outside the current list, especially 2950-2850 cm-1, 1260-800 cm-1 fine structure, and any broad O-H or distinctive Si-O-Si absorptions, to separate ester/ether organics from siloxane-containing material. Run GC-MS if the sample is volatile or extractable to test whether a small acetate solvent such as 1-methoxypropan-2-yl acetate is actually present. If the sample is nonvolatile or film-like, collect ATR-FTIR with higher signal quality and compare specifically against ester polymers, acrylic materials, and silicone-containing coatings. If silicon remains a concern, verify by elemental screening such as XRF, SEM-EDS, or a silicon-focused wet-chemical or spectroscopic test.
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