The transmission spectrum and the absorption spectrum of alcohol shows that the characteristic absorption peak shifts with alcoholicity due to the molecular configuration.
通过对酒精透射光谱和吸收光谱的研究发现，其特征吸收峰随浓度不同发生漂移，从分子结构能级角度对其做了定性解释；
The terahertz absorption spectra and the characteristic absorption peak 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。
Results Utilizing lactic acid dissolution and alcohol precipitation technology could prepare granules of chitosan lactate, which had characteristic absorption peak in infrared spectrum.
结果利用乳酸溶解和醇沉淀工艺可制备出壳聚糖乳酸盐颗粒，在红外光谱中具有特征性吸收峰。
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