An Electrochemical reactor of seleno-ferritin consisted of oscillating bag, seleno-ferritin, constant-flow pump, conductivity apparatus, magnetic stirrer, and electrochemical system was used to store the micro-compound containing phosphorus from the flowing water in the protein shell of the ferritin. 由透析袋、硒-铁蛋白、恒流泵、电导仪、磁力搅拌器及电化学系统等构成硒-铁蛋白电化学反应器。