A method for purifying a dipeptide ester by electrolysis in an electrolytic cell comprising an anode compartment, a cathode compartment and a central compartment partitioned by anion exchange membranes, which comprises supplying an aqueous dipeptide ester solution containing an inorganic acid to the central compartment defined by said anion exchange membranes, an aqueous solution containing a basic substance or an aqueous electrolyte solution containing a basic substance to the cathode compartment and an aqueous electrolyte solution to the anode compartment, supplying hydroxyl ions from the cathode compartment to the central compartment through the anion exchange membrane to neutralize the aqueous dipeptide ester solution containing the inorganic acid and removing anions of the inorganic acid in the aqueous dipeptide ester solution from the central compartment to the anode compartment through the anion exchange membrane.  
                            一种在电解池中通过电解纯化二肽酯的方法,电解池包括一个阳极室、一个阴极室和一个由阴离子交换膜隔开的中心室,该方法包括向由所述阴离子交换膜限定的中心室提供含有
无机酸的二肽酯
水溶液,向阴极室提供含有碱性物质的
水溶液或含有碱性物质的电解质
水溶液,向阳极室提供电解质
水溶液、通过阴离子交换膜从阴极室向中心室提供羟基离子,以中和含有
无机酸的二肽酯
水溶液,并通过阴离子交换膜从中心室向阳极室除去二肽酯
水溶液中的
无机酸阴离子。