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| 重铬酸钾法测定水中化学需氧量的分析研究 | |
| 引用本文： | 王俊,唐启,崔俊峰,张富强,王秋菊. 重铬酸钾法测定水中化学需氧量的分析研究[J]. 河南科学, 2012, 30(9): 1217-1219 |
| 作者姓名： | 王俊 唐启 崔俊峰 张富强 王秋菊 |
| 作者单位： | 1. 河南省科学院化学研究所有限公司,郑州,450002 2. 河南省有色金属地质矿产局第四地质大队,郑州 450000;河南省木质素工程技术研究中心,郑州450002 3. 河南省科学院化学研究所有限公司,郑州450002;河南省木质素工程技术研究中心,郑州450002 4. 内乡县环境保护监测站,河南南阳,474350 |
| 摘 要： | 采用重铬酸钾法测定水样的化学需氧量,分析了缩短回流时间、快速冷却及空白试验不加硫酸银、硫酸汞对测定结果的影响.经实验证实,改进后方法测定结果与国家标准推荐方法相比,不存在显著性差异.对于一定水样,该方法准确可靠,可降低能耗、节约资源,且能提高工作效率,适合批量样品的测试. |
| 关 键 词： | 重铬酸钾法 化学需氧量 测定 |
Analysis of Potassium Dichromate Method for Determining COD in Water |
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| Wang Jun , Tang Qi , Cui Junfeng , Zhang Fuqiang , Wang Qiuju. Analysis of Potassium Dichromate Method for Determining COD in Water[J]. Henan Science, 2012, 30(9): 1217-1219 | |
| Authors: | Wang Jun Tang Qi Cui Junfeng Zhang Fuqiang Wang Qiuju |
| Affiliation: | 3 (1. Institute of Chemistry, Henan Academy of Sciences, Zhengzhou 450002, China： 2. The Fourth Geological Team of Geology and Mineral Resources Administration of Henan Nonferrous Metal, Zhengzhou 450000, China 3. Neixiang Environmental Protection Monitoring Stations, Nanyang 474350, Henan China 4. Henan Province Lignin Engineering Technology Research Center, Zhengzhou 450002, China) |
| Abstract: | Using the potassium dichromate method to determine the chemical oxygen demand, the authors analyze the effects of shortening reflux time,rapid cooling, and the blank test sample without silver sulfate and mercury sulfate on the test results. The experiment confirmed that,for some water, the method is accurate and reliable, can reduce energy consumption, save resources, and can improve the work efficiency, is suitable for batch samples test. |
| Keywords: | potassium dichromate method COD determining |
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