查看上面的报告。如果需要后续讨论,请使用下方的评论。
FTIR证据不支持确定的化合物级鉴定。谱库匹配非常弱,所有列出的候选物相似度为零,因此命名的顶级命中不能被视为可靠分配。观察到的1397-1417 cm-1谱带以及682和869 cm-1附近的强低波数特征,更符合简单的含氮或碳酸盐残留物,而非特定鉴定的分子材料。由于乙腈出现在主要谱库候选物中,腈类可能性仍然存在,但预计在大约2250 cm-1处的孤立强谱带在此未报告。总体而言,最安全的结论是广泛的材料方向,涉及小的含氮无机或简单有机残留物,可能涉及硝酸盐、碳酸盐或腈类,而非确认的单一物质。
推荐的后续步骤: Re-acquire the FTIR spectrum with full band intensities and baseline correction, paying particular attention to the 2300-2200 cm-1 region for a nitrile band and the 1500-1300 cm-1 region for nitrate or carbonate line shape. Check for atmospheric or substrate contamination and repeat after a clean blank/background measurement, since the weak aliphatic C-H bands may reflect handling residue. If nitrate is suspected, verify with Raman or ion chromatography; if carbonate is suspected, test acid reactivity or confirm by XRD for an inorganic salt residue. If a volatile organic residue is possible, complement FTIR with GC-MS or headspace analysis to evaluate a small nitrile such as acetonitrile.
| 排名 | 匹配% | 化合物 | SMILES | 光谱编号 | 操作 |
|---|---|---|---|---|---|
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FTIR.fun
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