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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.
Tularaemia The disease is known by different names like deer fly fever, rabbit fever, Ohara’s disease or tularensis. It is an acute, febrile, granulomatous infection, caused b
Define Objectives to know about methods of food processing? After studying this unit, you will be able to: Enumerate the different methods of food processing Enlist
Q. Health Promotion for the General Population? Targeted to have a healthy, risk free population and involves development of an effective communication strategy to modify indiv
HISTORICA L REVIEW Anoximander (600 B.C.) was the first western philospher who proposed the idea that "living creatures arose from the moist element". Empedocles (500 B.
Give three examples of genetic engineering that are intended to improve crop plants. Genetic engineering of crop plants can improve resistance to pests, retard ripening, impro
CONCLUSION OF PHYLUM ANNELIDA
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Explain Sodium alginate Sodium alginate helps in aiding cloud retention and inhibits clarification in orange squash and crush. It has been used as the most efficient stabilizer
Polyembryony Presence of more than one embryo in a seed is termed polyembryony. The phenomenon, first discovered in orange seeds by Leeuwenhoek (1719), attracted considerable
Define Estimation of protein by Carcass nitrogen analysis method? Carcass nitrogen analysis: This method includes Nitrogen retention method Net protein utilization
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