Liquid chromatography separations of solutes are achieved using porous hollow fibers. The pores of the hollow fibers immobilize a solute-absorbing phase (preferably organic) which has a greater absorbance affinity towards at least one solute in a mixture of solutes. By passing the solute mixture through the central lumen of the hollow fibers, chromatographic separations are realized due to the greater retention time of that solute with which the immobilized phase has greater absorbance affinity. The immobilized phase may be a liquid organic which may contain a surfactant so as to form reversed micelles or it may be in the form of a polymeric gel. Separations of biological species (e.g., proteins) may thus be accomplished by means of the present invention.
多孔中空纤维可实现溶质的
液相色谱分离。中空纤维的孔隙固定了溶质吸收相(最好是有机相),该吸收相对溶质混合物中的至少一种溶质具有更强的吸收亲和力。当溶质混合物通过中空纤维的中心腔时,由于固定相对其具有更强的吸附亲和力,因此溶质的保留时间更长,从而实现色谱分离。固定相可以是含有表面活性剂的液态有机物,从而形成反向胶束,也可以是聚合物凝胶形式。因此,
生物物种(如蛋白质)的分离可通过本发明完成。