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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.
What is deplasmolysis of plant cells? The plant cell when placed under hypertonic medium loses a huge amount of water and its cell membrane detaches from the cell wall. In that
DNA binding domains called as basic domains rich in basic amino acids that was happen in transcription factors in combination with zipper helix-loop-helix or leucine (HLH) dimeriza
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Oxides of sulphur: It includes SO 2 , SO 3 . It is a colorless gas having sharp, pungent and suffocating odour. It is soluble in water and forms H 2 SO 4 . Sourc
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Calculate the osmolarity of a solution of 5% dextrose in water (dextrose = glucose, molec. Wt. = 180).
phylogenetic consideration
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Does greater light 80 cm instead of 20 cm produce more photosynthesis on plants? Why or why not
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