综述了茶多糖的提取纯化方法、纯度及测定方法、化学组成、结构分析方法。
The methods of extraction and purification, test, chemical composition, structure analysis of tea polysaccharide are summarized.
用GPC法测定了各聚合物分子量，用1 H NMR法表征了各聚合物化学结构。
Molecular weight and chemical structure of each polymer have been characterized by gel permeation chromatography (GPC) and 1h-nmr, respectively.
本文讨论了制造助滤剂的科学基础，测定了珍珠岩助滤剂的化学性质和物理结构。
In this paper, the scientific bases for preparation of filter-aid have been discussed and the chemical properties and physical structure of perlite filter-aid have been analysed.
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