The separation of free and bound vitamin B12.
D000327:Adsorption; D000418:Albumins; D000818:Animals; D001646:Bile; D002606:Charcoal; D002850:Chromatography, Gel; D003037:Cobalt Radioisotopes; D003956:Dialysis; D005750:Gastric Juice; D006801:Humans; D007437:Intrinsic Factor; D008567:Membranes, Artificial; D008722:Methods; D012463:Saliva; D013552:Swine; D014462:Ultrafiltration; D014805:Vitamin B 12 / Q000302:isolation & purification*
D000418:Albumins; D003037:Cobalt Radioisotopes; D008567:Membranes, Artificial; D002606:Charcoal; D007437:Intrinsic Factor; D014805:Vitamin B 12