摘要
本文报道一种用于在线拉曼光谱测量的技术。可以在工业生产过程中对产品的成分和工作条件进行实时的监测 ,在本实验中 ,用我们自己研制的光纤探头 ,配合现有的拉曼光谱装置对合成乙酸乙酯的化学反应过程进行了实时跟踪测量。得到了反应过程中乙醇 ,乙酸和乙酸乙脂的拉曼光谱 ,从谱图分析了它们的特征峰与时间的关系 ,从而可由这些结果确定在此实验条件下反应物与生成物的浓度随时间的变化 。
We report an on-line Raman spectroscopy measurement with fiber probe. In the experiment, the real-time spectrum measurement of ethyl acetate synthesis reaction with ethanol and acetic acid was carried out by using a homemade Raman spectrometer. The time variation of integrated spectrum peak intensities of reaction product and raw materials are obtained. From the integrated peak intensities, the concentrations of the reactants can be deduced and the ending point of reaction under this experimental condition can be determined.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2001年第3期301-303,共3页
Spectroscopy and Spectral Analysis
