alcohol precipitation

基本解釋

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絲體水提液為對象，考察陶瓷膜的適配性與工藝參數(shù)，并與傳統(tǒng)的水提醇沉技術(shù)對比。
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.
結(jié)果表明，酒精沉淀分級法是按分子量大小、縮合程度的高低將胡敏酸分成較均一的級分，而對胡敏酸的性質(zhì)、結(jié)構(gòu)等無破壞作用。
Tannin fractions with different molecular weight distributions were obtained by purification of alcohol precipitation and fractionation of solvent extractions of black wattle bark tannins.
通過對黑荊樹皮單寧進(jìn)行醇沉純化和溶劑萃取分級，可得到分子量分布范圍不同的單寧級分。

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.
結(jié)果采用濾膜孔徑100 nm的陶瓷膜直接處理藥材水提液,可有效降低醇沉?xí)r乙醇的耗用量,提高除雜效率,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.
比較了不同預(yù)處理方法對黃原膠質(zhì)量及收率的影響,并對采用硅藻土過濾法進(jìn)行預(yù)處理,醇析法分離提純黃原膠工藝條件進(jìn)行優(yōu)化,得到了最佳工藝操作條件。
生物學(xué)
酒精沉淀法