用分光光度法测定水中的化学耗氧量简便快捷，减小了误差，提高了精度。
Its simple and quick to measure the COD of wasted water with the spectrophotometer, which error was reduced and accuracy was improved.
同时给出了化学耗氧量（COD）和总有机碳（TOC）之间的线性关系方程。
Simultaneity give out the chemical oxygen consumption(COD)and total organic carbon(TOC)the linear relationship equation.
利用流动注射分析技术（FIA）快速、连续测定海水化学耗氧量（COD）。
The method of flow injection analysis (FIA) is described for continuously measuring chemical oxygen demand (COD) in seawater.
本文详细论述了库仑法快速测定低污染的校区生活污水和高污染的工业污水中的化学耗氧量。
This paper discusses in detail that coulometry quickly measures chemical oxygen demand of low polluted domestic sewage of the school and high polluted industrial sewage.
除少数河口区外，胶州湾绝大多数海域的石油烃、化学耗氧量和金属铬含量均满足渔业水质要求。
The contents of petroleum hydrocarbons, chemical oxygen demand and chrome all meet the fishery water quality standard for major water areas in this Bay except a few estuary areas.
本文提出了一种以重铬酸钾为氧化剂在新的条件下快速及准确测定化学耗氧量（COD）的方法。
A method for the rapid and accurate determination of chemical oxygen demand (COD) using potassiumdichromate as oxidant under new conditions is described in this paper.
糖蜜酒精废水是一种高浓有机酸性废水，因其色度高、化学耗氧量和生物耗氧量高而不容易处理。
Molasses wastewater was a type of high concentration and acidic organic effluent, which was not disposable easily for its dark color, high COD and BOD.
对饮用水中化学耗氧量（COD）的通用测定方法进行了改进，采用一定功率的电炉直接加热试样，调节酸度后进行滴定，得到了和通用测定法相同的测定结果。
Sample is directly heated with an electrical stove and it is titrated after its acid content is adjusted, by which the result consisted with that of a common determining method is obtained.
对饮用水中化学耗氧量（COD）的通用测定方法进行了改进，采用一定功率的电炉直接加热试样，调节酸度后进行滴定，得到了和通用测定法相同的测定结果。
Sample is directly heated with an electrical stove and it is titrated after its acid content is adjusted, by which the result consisted with that of a common determining method is obtained.
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