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Define Adsorption chromatography - Basic Separation Technique?
Adsorption is surface interaction and is by number of forces, between surface atoms of solids and molecules of external solute. Adsorption chromatography comprises of systems where active absorption occurs at the surface of the solid stationary medium, often alumina or silica gel. Competition for adsorptive sites occurs between the molecules of the mixture to be separated and the molecules of mobile phase, be it gas or liquid.
The speed of migration of a component will depend on its adsorptive affinity relative to the other species present. A number of attractive forces (Vander Waal forces, hydrogen bonding etc.) between the stationary phase and substances to be separated have been recognized and separation takes place due to differences in these adsorption forces.
Hypolimnion - Summer Stratification This zone forms the bottom layer which is deep, cold and non- circulating. The hypolimnion is generally rich in nutrients though its oxygen
In a neuron at rest, the membrane A. voltage will be less than zero. B. sodium conductance is greater than the membrane potassium conductance. C. voltage is less than the
Epizootic lymphangitis Epizootic lymphangitis (pseudo-glanders) is a chronic, insidious and highly contagious fungal disease of equines particularly horse and very rarely of c
habitat, habit, cell wall chemistry, reason why cell wall like this of Archaebacteria , eubacteria,fungi,algae,bryophytes ,pteridophyes, gymnosperms , angiosperms..
Factors Associated With Accident Cost in Administrative Functions Loss of prestige. Costs for notification, investigation and legal action. Loss of pu
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What are the risk factors of cataractogenesis? Risk Factors of Cataractogenesis: a. Hereditary b. Exposure to ultra violet radiation: The ultra violet radiation of 290
wich variables are controlled when conducting a phototropism experiment
How Environmental temperature affect requirement of protein? Environmental temperature: As environmental temperatures rise or fall above or below the range of thermic neutralit
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