column chromatography การใช้

• Nucleoside phosphoramidites are purified by column chromatography on silica gel.
• Purification typically involves extensive column chromatography, extraction to name a few techniques.
• With a bit of skill, Pasteur pipettes may also be used for microscale column chromatography.
• With appropriately fine silica gel, the bulb may be squeezed for microscale flash column chromatography.
• The products are usually extracted and purified by phenol-methylene chloride extraction or by column chromatography.
• Hydrolysis of the chlorides yield the corresponding alcohols, which are separable by column chromatography over alumina.
• In fact, the diastereomeric forms of DTHFP have been separated by column chromatography over silica gel.
• The particle size of the stationary phase is generally finer in flash column chromatography than in gravity column chromatography.
• The particle size of the stationary phase is generally finer in flash column chromatography than in gravity column chromatography.
• The final product "'3 "'was isolated by column chromatography at  " 30 癈.
• Unlike column chromatography and high-performance liquid chromatography, countercurrent chromatography operators can inject large volumes relative to column volume.
• Stopcocks are often parts of laboratory glassware such as burettes, separatory funnels, Schlenk flasks, and columns used for column chromatography.
• Fractionation of components also takes place in column chromatography by a difference in affinity between cell components are separated by difference in mass.
• The powder can also be introduced in a column chromatography setup and eluted with organic reactants in order to probe the reducing power.
• The solvent is evaporated and the residue ( the toluene-soluble soot fraction ) redissolved in toluene and subjected to column chromatography.
• He isolated an inducible extracellular homogenous enzyme, which shows 7.5 fold increases in its activity after DEAE cellulose column chromatography.
• Still and coworkers also developed the purification technique known as flash column chromatography which is widely used for the purification of organic compounds.
• Ginsenosides can be isolated from various parts of the plant, though typically from the roots, and can be purified by column chromatography.
• Additionally, the products of auxiliary-directed reactions are diastereomers, which enables their facile separation by methods such as column chromatography or crystallization.
• Column chromatography can be used, but solid-phase metal scavengers ( ion exchange resins and derivatives of silica gel ) promise more efficient separation.