1) the separation of fabrication and transmission
制播分离
1.
Tentative exploration into the background and significance of the separation of fabrication and transmission;
试论制播分离产生的背景与意义
2) separation reserving broadcasting
存播分离式
3) separation and preparation
分离制备
1.
Many methods of separation and preparation of catechin,including cellulose column chromatography,Sepha- dex LH—20 chromatography,silica gel column chromatography,adsorption resin column chromatography and high-speed countercurrent chromatography (HSCCC) were briefly summarized in this paper.
Sephadex LH—20柱层析分离的量较大,但是分离时间较长,而且Sephadex LH—20柱填料昂贵;高速逆流色谱分离效果较好,得到的儿茶素单体的纯度较高,分离时间相对要短,但是目前市场上只有分析型,分离的量相对少;硅胶材料廉价,但是分离的效果不佳,且分离过程相对繁琐,单体制备量较小;吸附树脂柱层析分离已实现EGCG单体的工业化生产,但在其他儿茶素单体的分离制备上尚不成熟。
4) separation mechanism
分离机制
1.
The separation mechanism of solvent sublation was also discussed.
溶剂浮选法分离精氨酸的动力学实验结果表明,精氨酸的溶剂浮选过程阶段性明显,大致可分为3个阶段,第一阶段和第二阶段都符合一级动力学方程,第三阶段符合零级动力学方程,探索了溶剂浮选法分离精氨酸的分离机制。
5) preparative separation
分离制备
1.
High-speed counter-current chromatography(HSCCC),a support-free liquid-liquid partition chromatographic technique,eliminates irreversible adsorption of the sample onto the solid support,and has been widely used in preparative separation of natural products.
本文从HSCCC样品制备、分离条件优化、技术进展以及近几年HSCCC在天然产物有效成分分离制备中的应用等方面进行了综述。
2.
High-speed countercurrent chromatography(HSCCC) combined with(silica) gel column chromatography was developed for the preparative separation of the two individual(aloins).
采用高速逆流色谱和硅胶柱色谱结合的方法,从老芦荟干粉中分离制备了高纯度的芦荟素A(纯度为98%)和芦荟素B(纯度为96%)样品,并采用快原子轰击质谱(FAB-M S)和核磁共振氢谱(1H NMR)以及GOE SY(grad ien t-enhanced nuc lear O verhau ser e ffec t spec tro scopy)等方法对所得的两个芦荟素异构体的立体构象进行了确认。
补充资料：播播
1.水流声。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条