| 酸性高锰酸钾滴定法测定生活饮用水中耗氧量的不确定度的评定 |
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| 引用本文： | 王丹侠,张建文,许韡. 酸性高锰酸钾滴定法测定生活饮用水中耗氧量的不确定度的评定[J]. 现代科学仪器, 2009, 0(6): 84-87 |
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| 作者姓名： | 王丹侠 张建文 许韡 |
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| 作者单位： | 上海市虹口区疾病预防控制中心,上海,200082 |
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| 摘 要： | [目的]评估酸性高锰酸钾滴定法川对生活饮用水中耗氧量检测结果的影响。【方法】根据测定方法建立数学模型，然后对不确定度的分量逐一进行计算，最终合成不确定度报告。【结果】当k=2（95％置信概率）时，耗氧量含量为2．99mg／L±0．17mg／L。【结论】评估对酸性高锰酸钾滴定法测定生活饮用水中耗氧量过程的质量控制及检测结果可信度的保证有实际意义。
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| 关 键 词： | 不确定度 酸性高锰酸钾滴定法 耗氧量 |
Evaluation of Uncertainty in Determination of COD in Drinking Water by Acidic Potassium Permanganate Titration |
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| Wang Danxia,Zhang Jianwen,Xu Wei. Evaluation of Uncertainty in Determination of COD in Drinking Water by Acidic Potassium Permanganate Titration[J]. Modern Scientific Instruments, 2009, 0(6): 84-87 |
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| Authors: | Wang Danxia Zhang Jianwen Xu Wei |
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| Affiliation: | Wang Danxia,Zhang Jianwen ,Xu Wei (Shanghai Hongkou Centre for Disease Control and Prevention, Shanghai200082,China) |
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| Abstract: | [Objective] Evaluation of the effect on determination of COD in drinking water by Acidic potassium permanganate titration. [Method] According to the measurement to establish a mathematics model and calculate the composed of uncertainty until being a report. [Results] When k=2 COD in drinking water was 2.99 mg/L±0.17mg/L, [Conclusion] This method of evaluation of COD can be used in quality control of determination process. |
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| Keywords: | This method of evaluation of COD can be used in quality control of determination process. Key words Evaluation of uncertainty Acidic potassium permanganate titration COD |
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