And although there is a great mass of similarity in infrared spectrum the results still show differences in the characteristic peaks of infrared spectrum between unzymic and zymic Pu'er tee .

根据红外光谱的特征峰形和 吸光度 比不仅可以区分生普和 熟 普，而且有可能区分生普或 熟 普 的 不同 品质 级别。