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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.
type study of polystomella
Ribo Nucleic Acid contains OH group at second carbon where as Deoxyribo Nucleic Acid lacks OH group at Second carbon.....DNA is Double standed helix whereas RNA is single stranded
Q. Show the Symptoms of salmonellosis? Symptoms: The susceptibility of humans varies with the species and strains of the organism and the total number of bacteria ingested. A
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Medication delivered in the form of a pill contains an active ingredient or ingredients. Beside the drug itself, the pill also contains "fillers". The filler has several functions.
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Which of the following BEST characterizes gas exchange in animal versus plant metabolism: Animals take in O2 and release CO2. Plants take in and release both O2 and CO2. Both anima
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