乙醇和甲醇混合液激光拉曼光谱研究

用激光拉曼光谱的方法对乙醇和甲醇混合液进行了研究，依据混合液中甲醇含量增加引起拉曼光谱形貌变化的规律，对无水乙醇拉曼光谱的某些振动模式提出了新看法。研究结果表明，利用激光拉曼光谱的方法对无水乙醇中混有甲醇时进行快速检验是简单易行的。本研究给出了标志甲醇存在的光谱特征，这在假酒的鉴别中有一定的实用价值。

A Study of Mixed Solutions of Ethanol and Methanol by Raman Spectroscopy

A study on mixed solutions of ethanol and methanol by laser Raman spectroscopy is reported. The devolopment of Raman profile or mixed solutions with defferent amounts or Methanol leads to the alternative assignments of Raman bands of ethanol molecules. The result or this study also shows that it is easy to determine the existence and the quantity or methanol by using laser Raman spectroscopy when ethanal is mixed with methanol. This paper presents a spectroscopic finger-print for detecting the methanol in mixed solution, which has practical value in evaluating the quality of alcohol.