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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.
Explain Fluids Fluids: Fluid diets are given to patients with more advanced dysphasia or fractured jaws. The diet may include fruit juices, thin strained porridge with milk, e
Synthetic Conduits Dacron, Polytetra fluro ethylene (PTFE) and polyglycolic acid grafts have extremely poor results and are not used any more.
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Explain Neurologic disease For patients with facial nerve palsy alone, oral doxycycline or amoxicillin may be effective. Patients with other neurologic involvement, such as men
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