| 氯离子对COD测定影响的探讨 |
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| 引用本文： | 慕志波,朱丽华.氯离子对COD测定影响的探讨[J].污染防治技术,2011(5). |
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| 作者姓名： | 慕志波 朱丽华 |
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| 作者单位： | 苏州市相城区环境监测站; |
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| 摘 要： | 研究含有高氯离子样品COD的测定,发现其中的白色沉淀为AgCl。实验结果证明,按照标准方法,当取样体积为20 mL时,按0.4 g HgSO4络合2 000 mg/L Cl-的比例投加掩蔽Cl-可以取得理想的效果。
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| 关 键 词： | 化学需氧量 氯离子 硫酸汞 硝酸银 |
Study on the Effect of Chlorine Ion to the Chemical Oxygen Demand Determination |
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| MU Zhi-bo,ZHU Li-hua.Study on the Effect of Chlorine Ion to the Chemical Oxygen Demand Determination[J].Pollution Control Technology,2011(5). |
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| Authors: | MU Zhi-bo ZHU Li-hua |
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| Institution: | MU Zhi-bo,ZHU Li-hua(Suzhou Xiangcheng District Environmental Monitoring Station,Suzhou,Jiangsu 215131,China) |
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| Abstract: | The determination of COD in the samples with high chlorine concentration showed that the white precipitate is AgCl.According to the standard methods,when the volume of sample is 20.00mL,2000mg/L Cl-can be coordinated by 0.4g HgSO4 and the masking of Cl-can achieve an ideal effect. |
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| Keywords: | chemical oxygen demand chlorine ion mercuric sulfate silver nitrate |
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