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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.
Define the characteristics that are seen in Rickets? The following characteristics are seen in fully developed cases of rickets: 1) In case of young infants, delayed closure
Q. How be able to the excretory system of annelids be described? In each segment (metamere) of the being a pair of complete excretory structures known as metanephridium exists.
Determine Pull-ups test for check the body strength? This test is also done to measure upper body strength or endurance by maximum number of pull-ups completed. Subject hangs f
Composition - Culture Medium A standard plant tissue culture medium (Basal medium) contains all the essential macro elements (Carbon, hydrogen, oxygen nitrogen, phosphorus, su
Hereditary fructose interolance is a rare recessive disorder that is caused by a mutation in the aldolase B gene. As a result of this disorder individuals may have all of the follo
Central Cell - Synergids It is the largest cell of the embryo sac, and the mother cell of the endosperm. The enlargement of the embryo sac after the last nuclear division is m
Butylated hydroxyanisole (BHA) It is commercially available as a mixture of two isomers and has found wide commercial use in the food industry. It is highly soluble in oil and
Q Beings from four phyla of the animal kingdom "breath" (do gas exchange) by diffusion. Which are those phyla? How is this type of respiration associated to features present in tho
Q. How is the sound vibration captured by the tympanum transmitted through the ossicular chain of the middle ear? The acoustic transmission from the middle to the external ear
What do we mean by the term isomer? Existence of different compounds having same molecular form but dtfferent structural forms are isomers. Monosaccharides exhibit a varie
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