| 重铬酸盐法测定化学需氧量(CODcr)的不确定度评定 |
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| 引用本文： | 李杰. 重铬酸盐法测定化学需氧量(CODcr)的不确定度评定[J]. 环境技术, 2004, 22(3): 21-23,26 |
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| 作者姓名： | 李杰 |
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| 作者单位： | 广州市番禺区环境监测站,广州,511400 |
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| 摘 要： | 介绍滴定法测定水中CODcr的不确定度分析。用因果图分析了测量器具、标准溶液、环境条件和测量重复性等因素对测量不确定度的贡献,分析结果给出水中CODcr测量的扩展不确定度为2.2%。
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| 关 键 词： | 测量不确定度 COD 水质分析 |
| 文章编号： | 1004-7204(2004)03-0021-03 |
Analysis of Measurement Uncertainty for Determining CODcr by Titration Method |
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| LI Jie. Analysis of Measurement Uncertainty for Determining CODcr by Titration Method[J]. Environmental Technology, 2004, 22(3): 21-23,26 |
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| Authors: | LI Jie |
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| Abstract: | Analysis of measurement uncertainty for determining CODcr by titration method is described. The effects of apparatus, standard solutions, environmental condition and measurement reaptbility are analysed and evaluated. Expanded uncertainty of determination of CODcr in water is 2.2%. |
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| Keywords: | uncertainty of measurement COD water analysis |
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