alcohol precipitation

基本解释

The adaptation and technological parameters of ceramic membrane were investigated and compared with the traditional technique of water extraction and alcohol precipitation.
方法以蝙蝠蛾被毛孢菌丝体水提液为对象，考察陶瓷膜的适配性与工艺参数，并与传统的水提醇沉技术对比。
Humic acid extracted from peat was classified into seven fractions by alcohol precipitation technique for the analysis of thermolysis, flocculation limit and some optical properties.
结果表明，酒精沉淀分级法是按分子量大小、缩合程度的高低将胡敏酸分成较均一的级分，而对胡敏酸的性质、结构等无破坏作用。
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。

醇沉
Results The use of ceramic membrane(100 nm) filtration on purification of water extract of raw materials effectively reduced the consumption of alcohol in alcohol precipitation,improved purification efficiency and reduced the energy consumption.
结果采用滤膜孔径100 nm的陶瓷膜直接处理药材水提液,可有效降低醇沉时乙醇的耗用量,提高除杂效率,降低能耗。
醇析法
The process conditions of separation and purification via diatom earth filtration and alcohol precipitation were studied . The optimum process conditions were determined.
比较了不同预处理方法对黄原胶质量及收率的影响,并对采用硅藻土过滤法进行预处理,醇析法分离提纯黄原胶工艺条件进行优化,得到了最佳工艺操作条件。
生物学
酒精沉淀法