Separation of Organics:

Ion exchange is equally effective for the separation of organic molecules like amino acids, sugars, nucleic acid and peptides. The purification of several important organic molecules has been achieved by ion exchange chromatography. The use of carboxylic acid cation exchange resin for recovering and purifying the antibiotic, streptomycin, is one of the classic examples of industrial use of ion exchange chromatography. It should be kept in mind that streptomycin is a cation.