[Purification and concentration of albumin solutions by diafiltration using a parallel membrane dialyzer]

The last two years, artificial Kidneys have been used for purification and concentration of human serum albumin solutions coming from plasma cracking in two Blood Transfusion Centers. Results are easily reproducible and the apparatus is reliable and of low cost. The properties of dialysis and ultrafiltration of the A.N. 69 membrane are useful for eliminating ethanol and water. The artificial Kidneys are effective at low pressure. It is then possible to use peristaltic pumps and to have a closed circuit. The whole apparatus must be sterilized with chemical reagents.