采用外加单宁的方法研究了这种吸附材料对中草药提取物中缩合类单宁的选择性吸附能力。
By the approach of adding tannins into extracts of Chinese medicinal herbs, the adsorption selectivity of this adsorbent to condensed tannins was extensively investigated.
一类由一个分子的氨基与另一个分子的羧酸基之间，缩合而生成的聚酰胺。
A group of polyamides formed by the condensation between an amino group of one molecule and a carboxylic acid group of another.
本文论述了糠醛碱性缩合反应的基本原理和利用该反应合成呋喃类香料的具体应用，并对一些呋喃类香料的香气特征作了介绍。
In this article, the basic principle of alkaline condensation reactions of furfural as well as their application in the synthesis of furan perfume are described.
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