碱性高锰酸钾法测量海水化学耗氧量(COD)不确定度的研究

Study on Uncertainty of Sea Water's COD Measured by Alkalic Potassium Permanganate

以葡萄糖+谷氨酸为海水COD的标准物质。用人工海水和标准物质配制成系列标准溶液。根据对系列标准溶液的测量结果,获得了碱性高锰酸钾法海水COD测量不确定度的分布规律。

Glucose and L Glutamic-acid are standard substance for seawater＇s Chemical Oxygen Demand （COD） - A series of standard solution are prepared from artificial seawater and the standard substance. The distributicm regularities of uncertainty of Sea Water＇s COD Measured by Alkalic Potassium Permanganate are obtained by measuring result of a series of standard solution.