| 光度法测定高浓度化学需氧量 |
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| 引用本文： | 张国勋,许葵.光度法测定高浓度化学需氧量[J].环境污染与防治,1996,18(6):24-26. |
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| 作者姓名： | 张国勋 许葵 |
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| 作者单位： | [1]杭州市环境监测中心站 [2]浙江省淳安县环境监测站 |
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| 摘 要： | 在建立了低浓度化学需氧量光度测定法的基础上，进一步摸索了高浓度ＣＯＤ光度测定法的测试条件，实验证明，在波长６１０ｎｍ，重铬酸钾浓度（１／６Ｋ２Ｃｒ２Ｏ７）０．５５ｍｏｌ／Ｌ的条件下，可以测定２００～２０００ｍｇ／Ｌ范围内的ＣＯＤ，结果令人满意，用该光度法测定的ＣＯＤ与标准滴定法的ＣＯＤ比值在０．９７～１．０３之间。
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| 关 键 词： | 化学需氧量 光度法 测定 水质监测 |
High Range COD Determined by SpectrophotometricMethod |
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| Zhang Guoxun,Zhu Wen,Wang Rui.High Range COD Determined by SpectrophotometricMethod[J].Environmental Pollution & Control,1996,18(6):24-26. |
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| Authors: | Zhang Guoxun Zhu Wen Wang Rui |
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| Abstract: | On based of the spectrophotometric method (SPM) to determin low range COD, we studied the conditions of determining the high range COD. The concentration of COD among 200 to 2000 mg/L can be determined satisfactorily under the conditions of the length of 610 nm wave and 0. 55 mol/L of potassium dichromate. The ratio of COD by SPM and by Standard method is 0. 97-1.03. |
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| Keywords: | COD SPM method Determination |
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