定义 中文名称: 沉淀分级 英文名称: precipitation fractionation 定义: 基于高分子在溶剂中溶解度的差别使高分子溶质按溶解度自小至大分离出若干级份的过程。 应用学科: 材料科学技术(一级学科); 高分子材料(二级学科)
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Lignin through dissolution - precipitation fractionation was divided into three 3 points, P1(pH=6)、P2(pH=5)、P3(pH=2),GPC analysis showed that Mw and Mw/Mn lower than raw material.
木质素通过溶解—沉淀分级,得到三个级分,P1(pH=6)、P2(pH=5)、P3(pH=2),产物经GPC测定显示,平均分子量与分散度都比原料有所降低。
参考来源 - 木质素季铵盐为模板制备SiO·2,447,543篇论文数据,部分数据来源于NoteExpress
This paper deals with the way of purifying highly purity hyaluronic acid from ox eye by fractionation and organic solvent precipitation.
本文报道采用分级分离并结合有机溶剂沉淀法,从牛眼中纯化出高纯度透明质酸,较其他方法简便,易形成规模。
The vacuolating Cytotoxin from Helicobacter pylori YC-11 was purified by using water-extracting, salt precipitation and gel filtration chromatographic fractionation.
运用水油提、盐析及凝胶过滤色谱法对幽门螺杆菌YC-11株所分泌的形成空泡细胞毒素进行了提取。
Tannin fractions with different molecular weight distributions were obtained by purification of alcohol precipitation and fractionation of solvent extractions of black wattle bark tannins.
通过对黑荆树皮单宁进行醇沉纯化和溶剂萃取分级,可得到分子量分布范围不同的单宁级分。
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