TRANSPORT STUDIES OF AMINO-ACIDS THROUGH A LIQUID MEMBRANE SYSTEM CONTAINING CARBOXYLATED POLY(STYRENE) CARRIER

Transport mechanisms have been studied for amino acids such as p-amino benzoic acid and phenylalanine moving through a bulk organic liquid m embrane system containing carboxylated poly( styrene) carrier. The tra nsport in this system, in which one side of the membrane was acidic an d the other side was alkaline, was influenced significantly by the ini tial H+ ion concentration on the acidic side. The passage of amino aci ds through the organic bulk liquid membrane was governed by an electro chemical interaction between carboxyl groups in the membrane and trans porting materials.