Abstract
We studied a new autologous plasma exchange system with the chemical precipitation method. When we use a mixture of sodium chloride and glycine as the precipitant, globulin fraction precipitated with higher selectivity than albumin. The obtained precipitate was separated by filtration, and precipitant was removed by dialysis, respectively. In vitro test of normal human plasma, the removal rate of Alb, IgG, IgA and IgM were 28.9%, 88.9%, 68.7% and 61.8%.