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FTIR 模式最符合含強酯羰基與多個 C–O 吸收峰的氧化脂肪族物質,廣泛符合乙酸酯型醚/酯溶劑或相關氧化有機物。譜庫最近的名稱匹配為 1-methoxypropan-2-yl acetate,但檢索信心實際上不存在,且無直接文獻或參考確認,因此化學上最安全的結論是更廣泛的氧化酯/醚方向,而非確切的化合物層級鑑定。
建議的下一步: Recollect the FTIR spectrum with background control and confirm whether the 2280 cm-1 band persists; if it disappears, it may be atmospheric or instrumental rather than sample-derived. Check for additional ester-characteristic fingerprint detail in a higher-quality spectrum, especially relative intensities in the 1250–1000 cm-1 region, to compare against 1-methoxypropan-2-yl acetate and other alkoxy acetate references. Use GC-MS if the sample is volatile; that would directly test whether 1-methoxypropan-2-yl acetate or another glycol-ether acetate is present. If liquid, compare boiling range or retention behavior against common acetate solvents such as 1-methoxypropan-2-yl acetate, 2-ethoxyethyl acetate, and related alkoxy acetates.
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