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Abstract
The performance of a new model of countercurrent chromatograph called the XLLL cross-axis synchronous coil planet centrifuge was evaluated for protein separation. The apparatus produced a satisfactory retention of the stationary phase for the polymer phase systems composed of dextran T500, polyethylene glycol 8000 and potassium phosphate buffers. The capability of the apparatus was demonstrated in separations of histones and serum proteins.