The dialysis of milk

Abstract
A continuous dialysis apparatus using collodion thimbles (described) permits dialysis at 0[degree]-5[degree] and enables concentration of the dialysate. The serum obtained by "static" dialysis of a solution of spray-dried separated milk powder had ca. the same total and inorganic P content as that of an ultrafiltrate from the same solution. More inorganic P was dialyzed by continuous dialysis than by "static" dialysis but the dialyz-able organic P was the same in both cases.