1 | It is preserved to us in Cod. | |
2 | The standard Determination of the chemical oxygen demand is dichromate method , with the most widespread application. | |
3 | Measurements of the Chemical Oxygen Demand and the concentration of the anionic surfactants were used to follow the oxidation. | |
4 | Coulostatic method has been adopted to determine Chemical OxygenDemand (COD) in the waste water of Petrochemical Plant of Daqing Petroleum Administration. | |
5 | Recent advances in oxygen demand research have expanded the number of options available for testing. |