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該光譜最符合以醚鍵結為主的含氧脂肪族有機材料,譜庫最近匹配為聚乙二醇甲醚。然而,檢索信心實際上不存在,觀察到的譜帶並未可靠地確定該特定聚合物。因此,最可支持的結論是更廣泛的含氧脂肪族醚或聚醚/乙二醇醚方向,而非明確的化合物級別歸屬。
建議的下一步: Reacquire the FTIR spectrum with improved signal quality and confirm whether the 1728 cm-1 band is reproducible and intrinsic to the sample. Inspect the 1000-1150 cm-1 region at higher quality, since the shape and multiplicity there can help separate simple glycol ethers from polyethylene oxide/polyethylene glycol-type polymers. Check for complementary evidence by GC-MS or LC-MS if the material may be a small glycol ether, or by NMR/GPC if a polyether polymer is suspected. If the sample is a formulated product, evaluate whether the carbonyl band could arise from an ester-containing additive, plasticizer, or oxidation impurity rather than the main matrix.
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