The transmission spectrum and the absorption spectrum of alcohol shows that the characteristicabsorptionpeak shifts with alcoholicity due to the molecular configuration.
The terahertz absorption spectra and the characteristicabsorptionpeak of test samples are obtained, and comparing with the absorption spectra measured by other research institutions.
得到了待测样品的太赫兹吸收光谱，确定了其特征吸收峰的位置，与其他研究机构所测吸收谱进行了对比分析。
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Results Utilizing lactic acid dissolution and alcohol precipitation technology could prepare granules of chitosan lactate, which had characteristicabsorptionpeak in infrared spectrum.