Question 6.11:What criterion is followed for the selection of the stationary phase in chromatography? 相关知识点: 试题来源: 解析 The stationary phase is selected in such a way that the components of the sample havedifferent solubility's in the phase. Hence, different components have different ...
What are interactions that result in a large RF value in chromatography? Describe how the separation of mixture is done using thin layer chromatography. Can we use dimethylglyoxime instead of rubeanic acid in paper chromatography? What is the stationary phase and what is the mobile phase in the...
The driving force of a liquid chromatography separation is determined by solute partitioning between the mobile and stationary phases. Chromatographers must study a wide range of mobile-phase compositions and stationary-phase bonding densities to determine the thermodynamic driving force. The author ...
reversed-phaseLCsepara- Thedrivingforceofaliquidchromatographyseparationisdetermined bysolutepartitioningbetweenthemobileandstationaryphases. Chromatographersmuststudyawiderangeofmobile-phasecompositions andstationary-phasebondingdensitiestodeterminethethermodynamic drivingforce.Theauthorinvestigatedmethanolandacetonitrileas...
Over the years chromatography has gained an enviable position in analytical laboratories. You have been introduced to simple concepts on how to read a chromatogram.
-Supercritical fluid chromatography (SFC) In this post I will focus on flash chromatography, the principles of which are the same as HPLC. Both use columns filled with a stationary phase into which sample is injected and through which solvent is pumped. However, flash chromatography uses larger ...
Chromatography is a process for separating components of a mixture. ... The different components of the mixture travel through the stationary phase at different
What is reversed phase chromatography ? Explain what is meant by the term amphoteric. Give an example of a compound that fits the explanation. What is meant by the periodicity of properties? Are metallic bonds directional? Explain In capillary electrophoresis, how does switching the mode from posi...
High-performance liquid chromatography (HPLC), also known as "high-pressure liquid chromatography," "high-speed liquid chromatography," "high-resolution liquid chromatography," and "modern column chromatography," is an important branch of chromatography. It uses liquid as the mobile phase and a high...
What is adsorption coefficient chromatography? The adsorption coefficient (adsorption constant) isa measure of the speed at which molecules of a surfactant are adsorbed at the surface. What is Koc and Kow? KOC = organic carbon partition coefficient; KOW = octanol-water partition coefficient. [ Color...