[A new scheme for the isolation and purification of human alpha-fetoprotein].

A new efficient scheme for the isolation and purification of human alpha-fetoprotein from human cord serum was proposed. Sequential chromatography on four columns (Cibacron Blue Sepharose, two metal chelate, and one reversed-phase) helped rapidly prepare alpha-fetoprotein samples of high purity (no less than 98%; purification factor approximately 10(3)) in high yields (approximately 85%).