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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.
State the concept of Finger Tapping The subject is asked to tap his or her extended index finger on a typewriter key attached to a mechanical counter. Several series of 10-seco
As heart failure sets in, there is activation of RAS (Fig 2.1). Adrenergic stimulation of beta-1 receptors in juxtaglomerular apparatus of the kidneys results in release of renin.
Endocrine glands Endocrine glands have no ducts - so these are also called as ductless glands Eg.Pituitary etc., These glands secrete chemical substances called HORMONES
Define Effect of Deficiency of chromiumin humans? Hallmark of marginal chromium deficiency is impaired glucose tolerance. Individuals receiving TPN without chromium have been s
Agrostology : This is related to all types of grasses. Agrostology is sometimes called as graminology. Agrostology is the scientific study of grasses. It typically encompasses the
Q. What is the essential morphology of a protozoan cell? Protozoans are eukaryotic cells so they have structures and organelles common to this kind of cell endoplasmic reticula
fertilization occurs when the ?
Which organs of the body are part of the human digestive system? The digestive system, also called as "systema digestorium", or gastrointestinal system, is composed of the dige
Q. What are the cytochromes? Cytochromes are proteins of the interior mitochondrial membrane that are specialized in electron transfer and participate in the respiratory chain.
1) a) Initially, how do skeletal muscles (the type of muscle attached to bones) make ATP? b) write the reaction for this procss (Crp +ADP => Cr + ATP) as a ''coupled'' reaction, id
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