申请人:AKEBONO BRAKE INDUSTRY CO., LTD.
公开号:EP0667521A1
公开(公告)日:1995-08-16
An electrode made of a metal or carbon, a working electrode (20) in contact with this electrode and of a microorganic germ-containing thin film, a counter electrode (7), and a reference electrode (5) as necessary are immersed in an organism-containing solution (30), and the BOD of this solution is measured by determining the quantity of an electric current flowing between the working electrode (20) and counter-electrode (7) or reference electrode (5), applying a voltage between the electrodes by a potentiostat (6). By this method, the concentrations of organic compounds can be measured directly without using an oxygen electrode even when the quantity of dissolved oxygen is small.
将由金属或碳制成的电极、与该电极和含微生物细菌薄膜接触的工作电极 (20)、对电极 (7) 以及必要的参比电极 (5) 浸入含有机物的溶液 (30) 中,通过恒电位仪 (6) 在电极之间施加电压,确定工作电极 (20) 和对电极 (7) 或参比电极 (5) 之间的电流大小,从而测量该溶液的生化需氧量。通过这种方法,即使溶解氧的数量很少,也可以不使用氧电极直接测量有机化合物的浓度。