請查看上方報告。如果需要後續討論,請使用下方的評論。
最近的譜庫名稱是 Poly(ethylene glycol methyl ether),但匹配品質非常弱,無法支持明確的化合物級別指派。觀察到的 FTIR 圖譜更安全地描述為含氧脂肪族醚材料,具有甲基取代聚醚特徵,基於強 C-O 豐富指紋區和主要脂肪族 C-H 特徵。窄化指派為 Poly(ethylene glycol methyl ether) 受到缺乏更強佐證參考證據以及存在 1728 cm-1 譜帶的限制,該譜帶表明存在額外的含羰基組分或修飾,無法以單純聚醚解釋。
建議的下一步: Re-examine the sample for the presence and intensity of a broad O-H band in the 3200-3600 cm-1 region to distinguish hydroxyl-terminated polyether material from a fully etherified analogue. Check for additional carbonyl-associated bands near 1170-1300 cm-1 and 1735-1750 cm-1 to determine whether an ester-containing additive or oxidation product is present. Compare against authenticated FTIR references for Poly(ethylene glycol methyl ether), Poly(ethylene oxide), and common esterified polyether materials under the same sampling conditions. Use complementary GC-MS or LC-MS for lower-molecular-weight material, or NMR if feasible, to verify whether the sample is a single methyl-terminated polyether or a carbonyl-containing mixture.
| 排名 | 匹配% | 化合物 | SMILES | 光譜編號 | 動作 |
|---|---|---|---|---|---|
| 正在載入資料庫候選... | |||||
使用此區域繼續解讀、提問或新增額外驗證證據。
FTIR.fun