| 摘要 |
PURPOSE:To efficiently separate an amino acid compound by migration effects caused by difference in pressure and electric field, by adjusting a solution to be separated to a proper pH and feeding the solution to a separating membrane arranged between electrodes under pressure. CONSTITUTION:An amino acid compound-containing solution to be separated is adjusted to a proper pH, either a component to be separated or the other component is provided with electric charge, the other is made an isoelectric point or provided with the opposite charge and an electric field is generated by electrodes 3 and 4. In this state, the solution 1 to be separated is fed to a separating membrane (e. g., precision filter membrane, ultrafilter or reverse osmosis membrane) M, the component of isoelectric point and the component having the same charge as that of the electrode 3 are passed through the separating membrane M by migration effects resulting from difference in pressure and the electric field and the permeated solution 2 is obtained at the opposite side of the separating membrane M to separate the aimed component. |
