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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.
Chymotrypsin Chymotrypsin is secreted in an inactive form 'chymotrypsinogen', which is activated by trypsin. Chymotrypsin is specific for peptide bonds containing unc
Define the importance of Iodine in human? Iodine derives the nutritional importance as a constituent of thyroid hormones, 3,5,3',5' tetraiodo-thyronine (thyroxine or T 4 ) and
Q. Why is colour an important characteristic of food? Colour is an important quality attribute in food although they do not necessarily influence their nutritional, flavour or
Q. List various type of insulin? Types of insulin: a) Rapid or Short acting b) Intermediate c) Combination d) Long acting
What do you Understand by Amphid? Unique to the nematodes, these paired sensory structures are located on the sides of the head. An external pore leads to an inner chamber and
Metaphase This is a period of short duration, the chromosomes are at the stage of their maximum condensation and , hence more clearly visible ,Upon each side of the
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Q. Dietary considerations oesophagitis? The dietary considerations for this condition are the same as in oesophag it is. The patient should be recommended to: • eat smaller
1. A roan bull which is heterozygous for the polled condition is mated to several cows of identical genotype to his. How many roan, polled animals should be produced out of 16?
Non-Surgical Therapy The most conservative approach to treatment involves non-surgical therapy. This treatment modality includes three subcategories: a) Pharmacological ther
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