Purified Water Extracts 纯净水提取液
The extracts from HPLC could react with polyphenol oxidase purified partially from betelnut and result in browning products.
其分部收集液能与已部分纯化的多酚氧化酶相互作用，形成褐变产物；
Methods the chemical compositions of the petroleum ether extracts were isolated and purified by chromatographic methods. The structure of acquired compounds was identified by spectrum method.
方法采用多种色谱方法对其含有的化合物进行分离纯化，利用波谱法对得到的化合物进行结构鉴定。
METHODS: Screening the purification condition by means of the content of active principle, fingerprint chromatography, the yield of dry extracts, et al. of the purified product.
方法从主要成分含量、指纹图谱、总固形物得率、除杂试验等多角度不同层次比较分析不同纯化产物与活性部位成分群的相似度和纯化效果。
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