| 以MnSO 4 作催化剂快速测定水中COD |
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| 引用本文： | 鲁敏,刘丽丹,王永亮.以MnSO 4 作催化剂快速测定水中COD[J].环境监测管理与技术,2006,18(2):24-25. |
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| 作者姓名： | 鲁敏 刘丽丹 王永亮 |
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| 作者单位： | 东北电力大学化学工程学院,吉林,吉林,132012 |
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| 摘 要： | 建立了酸性条件下,以MnSO4代替Ag2SO4作催化剂快速测定水中COD的方法.考察了K2Cr2O7用量、MnSO4用量、H2SO4浓度、消解温度、消解时间等因素的影响,确定了最佳试验条件和最佳测定范围.方法精密度和准确度均能满足测定要求,与重铬酸钾法作对比试验,测定结果基本一致.
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| 关 键 词： | COD MnSO4 催化剂 快速测定 水质 |
| 文章编号： | 1006-2009（2006）02-0024-02 |
| 收稿时间： | 2005-07-05 |
| 修稿时间： | 2005-07-052006-01-19 |
RapidM ensuration ofCOD with the Catalyzer ofMnSO 4 |
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| LU Min,LIU Li-dan,WANG Yong-liang.RapidM ensuration ofCOD with the Catalyzer ofMnSO 4[J].The Administration and Technique of Environmental Monitoring,2006,18(2):24-25. |
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| Authors: | LU Min LIU Li-dan WANG Yong-liang |
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| Institution: | School of Chemical Engineering, Northeast Electric Power University, Jilin, Jilin 132012, China |
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| Abstract: | It is reported that COD is determined rapidly with the catalyzer of MnSO4 in sulfuric acid instead of Ag2SO4. Based on the experiments, some factors have been thought, such as, reactive time, temperature, acid concentration, the dousage of K2Cr2O7 and MnSO4 and so on. And the best range and conditions of mensuration is confirmed. The compariton of the method and the national standard had shown that the precision and accuracy of the method are well and can meet the quality control requirement. |
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| Keywords: | COD MnSO4 Catalyzer Rapid mensuration Water quality |
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