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。

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.

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荧光法比吸光度法灵敏，更适用于超薄膜系如LB膜的表征。

Fluorimetry is for more sensitive than absorptiometry and is naturally suitable for characterization of ultrathin films such as Langmiur-Blodgett films (LB films).

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