Abstract
A hemodialysis is one of mass transfer phenomena. The solute concentration in blood may be calculated from that in dialysate, because all the solute removed must be transferred into the dialysate. We introduced some equations, with which the solute concentration in blood at the preand post-dialysis can be calculated from two dialysate concentrations. This calculation shows a good agreement with in vitro experiments within 10%, and with clinical data within about 30%. This method would be used in clinical therapy.
