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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.
Decreasing power is available in a cell both as NADPH and NADH but these have quite distinct roles. NADH is oxidized by the respiratory chain to produce ATP by oxidative phosphoryl
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M-Mode was the earliest form of cardiac ultrasound used clinically. It displays the amplitude signals of various structures along the length of ultrasound beam with distance or
What is pus Pus is a residual of the inflammatory reaction. It is having a mixture of fragments of dead leukocytes, infectious agents (generally bacteria) and tissues.
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Nine-year-old Alek is admitted to the emergency room with a closed fracture of the right femur. Radiography revels that the fracture crosses the distal epiphyseal plate. What conce
THEOR Y OF EPIGENESIS - It was propounded by C. F. Wolff and supported by Von Baer. According to it, the egg contains the substances which are required in the formation
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