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FTIR图谱模式与以C-O键为主的含氧脂肪族材料最一致,大致方向为聚醚类或乙二醇醚类组成,而非具体命名化合物的确定鉴定。主要的谱库匹配是聚乙二醇甲醚,并且排名靠前的谱库模式主要由富含醚的氧化分子组成,但整体匹配强度极弱,且该样品没有直接的文献确认。观察到的1093和1247 cm-1波段支持大量的C-O单键特征,而2867和1450 cm-1与脂肪族C-H兼容。然而,1728 cm-1波段表明存在一个含羰基组分,这不能由简单的聚乙二醇甲醚归属很好地解释,因此最安全的结论是更广泛的含氧醚类材料方向。
推荐的后续步骤: Recollect the FTIR spectrum over the full range with improved signal quality, especially to confirm the carbonyl region near 1728 cm-1 and the C-O fingerprint region from about 1000 to 1300 cm-1. Check for the presence or absence of a broad O-H band in the 3200-3600 cm-1 region to distinguish hydroxylated glycol ethers from capped polyethers. Compare the sample against authenticated spectra of Poly(ethylene glycol methyl ether), Poly(ethylene oxide), and representative glycol ethers under the same measurement conditions. If available, use complementary GC-MS or LC-MS for lower-mass glycol ethers, or NMR and SEC/GPC if a polymeric polyether is suspected.
| 排名 | 匹配% | 化合物 | SMILES | 光谱编号 | 操作 |
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