“…Therefore, HCIC has many advantages over traditional HIC, such as moderate operation condition, high adsorption capacity, and easy elution of bound proteins. Till now, HCIC has been successfully used in the separation and purification of antibodies [5][6][7][8][9][10][11][12] and various other proteins [7,[13][14][15]. In order for better understanding of HCIC processes for protein separations, fundamental studies have been extensively carried out [10,[16][17][18][19][20][21].…”