Chromatography
I. is employed for separation of constituents of mixture, and is based upon the principle of partition coefficent. ltBrgt II. Is used for separating molecules of a mixture under the influence of an applied electric field.
III. involved differential movement of each component through a stationary medium under the influence of a moving solvent.
IV. is used to detect amino acid variation in a number of human proteins.
A. Only III
B. I and IV
C. only IV
D. I and III
