precipitation fractionation
英
美
网络 沉淀分级法
双语例句
- Influence of Precipitation Fractionation of PCS on the Property of SiC Fiber
PCS的沉淀分级对SiC纤维性能的影响 - The mucopolysaccharides were further purified by precipitation with cetylpyridinium chloride and then fractionation with sodium chloride solution of different concentrations.
加入氯化十六烷吡啶使ChS-A及ChS-C沉淀，并利用此沉淀在不同浓度的氯化钠溶液中溶解度不同的这一特性以去除可能与ChS-A及ChS-C同时存在的其它酸性粘多糖。 - 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。 - Supercritical antisolvent ( SAS) precipitation technology is reviewed with respect to its process mechanisms, operational modes, effective factors and the application of SAS micronization process and fractionation process in a variety of different fields.
概述了超临界抗溶剂（SAS）沉析技术的原理、过程和影响因素以及在制备微细颗粒和分级分离方面的应用。 - Precipitation fractionation could narrow the molecular weight distribution of PCS and reduce high and low molecule, which may make it difficult to be spinned, but could improve the mechanical characteristic of SiC fiber.
沉淀分级可以使PCS的分子量分布变窄，减少高、低分子部分的含量，虽然纺丝较难控制，但能提高SiC纤维的力学性能。 - The obtained waste cell extract containing GOD was treated by a combination of cold ethanol precipitation, PEG fractionation and chromatography on hydroxyapatite to afford a final product with a specific activity of 190 U/ mg protein.
通过有机溶剂沉淀、聚乙二醇二次沉淀、羟基磷灰石柱色谱分离，可得到比活性超过190U／mg蛋白的产品。 - TBs can be isolated and purified effectively with organic solvent extraction, ethanol precipitation and methanol fractionation one by one.
依次通过有机溶剂萃取，乙醇沉淀以及甲醇分级可以对茶褐素进行有效地分离以及纯化。