COUNTERCURRENT distribution has been successfully applied to the separation of proteins and similar large molecules in certain water–organic solvent systems 1 and in some two-phase water systems ...

The man is the Rockefeller Institute’s Dr. Lyman Creighton Craig; the technique is called countercurrent distribution, or C.C.D. Crystal Pipe Organ. Iowa-born Chemist Craig, 57, went to the ...

WE make a distinction between preparative and the usual counter-current distribution. By the latter we mean, of course, the very efficient method of separation based on extraction, devised chiefly ...

Countercurrent distribution of the solutes happens in such a way that components with decreasing order of polarity are eluted in one liquid (say within a tubular system) and compounds with ...