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一般 FTIR 證據支持脂肪族含羰基有機材料,最強的狹義推論為酮類化合物,可能為環狀酮。譜庫頂部命中為環庚酮,但匹配強度實際上不存在,且無直接參考文獻或相關文獻證據獨立確認該特定歸屬。觀測到的 1699 cm-1 帶與酮類 C=O 吸收一致,而 2934 和 2863 cm-1 支持脂肪族 C-H 伸縮。1452、1338、1244、1158、936、851 cm-1 的譜帶與指紋區骨架及 C-H 變形模式相容,但無法唯一識別環庚酮。
建議的下一步: Recollect the FTIR spectrum at higher signal quality and confirm the carbonyl band shape and exact position near 1700 cm-1. Check specifically for any weak O-H or N-H stretching bands above 3000 cm-1 to rule in or out alcohol- or amide/imide-containing alternatives suggested by some library candidates. Compare the sample against an authentic Cycloheptanone reference spectrum, focusing on the full fingerprint region rather than the carbonyl band alone. If confirmation is needed, use GC-MS or LC-MS to test whether the sample is a low-molecular-weight ketone such as Cycloheptanone versus another aliphatic carbonyl compound.
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FTIR.fun
The above shows the FTIR analysis results of a jpeg file uploaded by a user (IP: 2600:: ). The original image is displayed below.
csv file:tem.csv
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