查看上面的报告。如果需要后续讨论,请使用下方的评论。
FTIR图谱支持一种含氧有机材料,具有强羰基带和主要的脂肪族烃特征。领先的谱库命中是propyl (Z)-octadec-9-enoate,更广泛的前15谱库模式主要由脂肪酸酯、二酯和其他含氧长链化合物组成。然而,谱库匹配质量极低,所有列出的候选物的相似度实际上为零,且没有直接参考文献或相关文献确认。因此,将窄范围归属到特定谱库化合物在化学上不保险。最可支持的结论是含氧长链脂肪族羰基材料,最可能类似于酯,并可能含有额外的羟基成分,如3393-3433 cm-1宽区域所示
推荐的后续步骤: Re-measure the FTIR spectrum after careful drying or purging to test whether the 3393-3433 cm-1 band is due to adsorbed moisture versus a true hydroxyl-containing component. Inspect the carbonyl region at higher spectral quality to determine whether there is a single ester carbonyl (C=O) band or multiple carbonyl environments indicating a mixture. Compare against authenticated spectra of long-chain fatty esters, diesters, and hydroxy esters rather than relying on the current weak library ranking. Use complementary GC-MS or LC-MS if the sample is extractable, or NMR if sufficient material is available, to distinguish a discrete fatty ester from an ester-containing mixture or additive.
| 排名 | 匹配% | 化合物 | SMILES | 光谱编号 | 操作 |
|---|---|---|---|---|---|
| 正在加载数据库候选... | |||||
| # | 波数 (cm⁻¹) | 吸光度 | 归属 | 引用 | 归属状态 | |
|---|---|---|---|---|---|---|
| 1 | · | 1735 | 1.00 | - | - | - |
| 2 | · | 2922 | 0.91 | - | - | - |
| 3 | · | 1165 | 0.78 | - | - | - |
| 4 | · | 2852 | 0.67 | - | - | - |
| 5 | · | 722 | 0.52 | - | - | - |
| 6 | · | 1074 | 0.52 | - | - | - |
| 7 | · | 1240 | 0.44 | - | - | - |
| 8 | · | 1460 | 0.44 | - | - | - |
| 9 | · | 1377 | 0.33 | - | - | - |
| 10 | · | 909 | 0.26 | - | - | - |
| 11 | · | 874 | 0.24 | - | - | - |
| 12 | · | 3007 | 0.20 | - | - | - |
| 13 | · | 3393 | 0.12 | - | - | - |
| 14 | · | 3403 | 0.12 | - | - | - |
| 15 | · | 3415 | 0.12 | - | - | - |
| 16 | · | 3423 | 0.12 | - | - | - |
| 17 | · | 3433 | 0.12 | - | - | - |
| 18 | · | 1566 | 0.11 | - | - | - |
| 19 | · | 2037 | 0.10 | - | - | - |
使用此区域继续解读、提问或添加额外验证证据。
FTIR.fun