浸透気化法
the concentration of a colloidal solution whose colloid will not pass through a semipermeable membrane solution is placed in a bag of the membrane and the solvent is evaporated off
コロイドが半透膜を通り抜けないコロイド溶液の濃度 溶液は袋の膜に置かれ溶媒は離れて蒸発する