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常规FTIR证据不支持将聚氯乙烯作为具体材料的明确分配。该光谱更宽泛地描述为一种含氧有机材料,显示脂肪族C-H吸收带、强羰基吸收带和O-H/N-H伸缩,并在指纹区可能有少量卤素相关贡献。由于谱库匹配质量实际上无法区分,且没有直接或相关文献证据缩小结果,因此一个宽泛的化学支持方向是最可辩护的结论。
推荐的后续步骤: Re-run the FTIR after checking background subtraction and ATR contact quality, since the present library discrimination is effectively absent. Inspect the full spectrum for characteristic chlorinated polymer bands in the 600-700 cm-1 region and compare against a verified PVC reference measured under the same conditions. Check whether the broad high-wavenumber features arise from moisture, alcohol functionality, or amine-containing additives by drying the sample and reacquiring the spectrum. If this is a polymer sample, use complementary methods such as DSC/TGA for formulation screening and, if chlorine is suspected, XRF or elemental analysis to verify halogen content.
| 排名 | 匹配% | 化合物 | SMILES | 光谱编号 | 操作 |
|---|---|---|---|---|---|
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