| Product DescriptionA Novel COD Analyzer Using Electrochemical MethodThe HACA-1000 is an on-line COD analyzer for water quality monitoring. The instrument performs a simple electrochemical measurement and provides safe operation without any hazardous reagents. The use of a specific electrode ensures an outstanding precision and stability for the system operation, which is applicable to various aqueous samples such as industrial and municipal wastewater.PrincipleThe modified metal-composite electrode is used as a catalyst for the oxidation of organics. Under a given potential, the oxidation process of a sample at the electrode provides a change in current. The change in current represented as the EOD(Electrochemical Oxygen Demand) value is directly proportional to the concentration of waste and can be converted into the COD(Chemical Oxygen Demand) value. | 
