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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.
Interrupted suture technique: Synthetic braided 2 '0' sutures (ethibond) with 17mtn needles on either end and a pledget is used. Alternate green and white sutures are taken aft
Anther is the top of a stamen's filament; divided into pollen sacs in which the pollen grains are form.
what factor''s do i colour depend on?
Q. Illustrate the tyndallisation? John Tyndall devised a process of sterilisation by steaming for a few minutes at 100 o C on 3-4 successive operations separated by 24 hour in
Briefly explain the difference between stabilizing selection, directional selection, and disruptive selection.
Explain the Mendel's Laws in genetics? Based on the results of his experiments, Mendel proposed three laws regarding the inheritance of traits: the Law of Segregation, the Law
How are the change in the ageing lens occurred in the metabolism? Changes in the Ageing Lens 1) Physical changes: Lens weight increases, light transmission decreases, li
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Ketosis Ketosis, also known as acetonaemia or ketonaemia is a multifactorial disorder that commonly occurs in dairy cows and buffaloes immediately after calving or in early lac
To test the effects of temperature on the activity of yeast Make up a quantity of bread dough .Stir a yeast cake in water and methodically mix the yeast with the dough. Divide
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