Abstract
Electrodialytic extraction was applied to the following extraction processes : a) Extraction of dihydrocodeine phosphate from a dihydrocodeine phosphatecarboxymethyl cellulose (CMC) system. b) Extraction of acrinol from medicated pad. c) Extraction of thiamine from modified milk powder. d) Extraction of berberine from powdered phellodendron. From these expreiments the following results were obtained. 1) In all experiments the superiority of electrodialytic extraction was proved. 2) By using electrodialytic extraction, clear extract was obtained easily from the sample, even from a turbid solution or insoluble materials. 3) The test component which moved in the opposite direction by electric current could be separated by using electrodialytic extraction. 4) It was found that electrodialytic extraction could be used for analysis of food and crude drugs.
