| 对饮用水中游离性余氯测定条件的研究 |
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| 引用本文： | 潘春龙.对饮用水中游离性余氯测定条件的研究[J].干旱环境监测,2012(1):11-13. |
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| 作者姓名： | 潘春龙 |
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| 作者单位： | 泰州市环境监测中心站,江苏泰州225300 |
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| 摘 要： | 系统研究了反应时间、水温、显色剂的用量及pH对游离性余氯测定的影响,优化选择最佳测定条件为控制水样pH<8,水温25℃,显色剂用量2.5 ml,加入显色剂后立即比色测定游离性余氯。在此条件下,测定3种生活饮用水游离性余氯,回收率为96.7%~99.8%,测定结果与《生活饮用水标准检验法》(GB 5750-85)中37.3滴定法颇为一致。
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| 关 键 词： | 游离性余氯 测定 优化 |
Study on Determination Conditions of Free Residual Chlorine in Drinking Water |
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| PAN Chun-long.Study on Determination Conditions of Free Residual Chlorine in Drinking Water[J].Arid Environmental Monitoring,2012(1):11-13. |
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| Authors: | PAN Chun-long |
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| Institution: | PAN Chun-long(Taizhou City Environmental Monitoring Station,Taizhou Jiangsu 225300,China) |
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| Abstract: | Studied response time,water temperature,reagent dosage and pH on the determination of free residual chlorine,optimized to select the optimum conditions for the control of the water pH8,25 ℃ water temperature,color reagent dosage of 2.5 ml,the colorimetric determined to free residual chlorine after adding the color reagent immediately.In this condition,the determination of the three kinds of free residual chlorine in drinking water,the recovery was 96.7%~99.8%,determination results with the drinking water standard test method（GB 5750-85） 37.3 titration method was quite consistent. |
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| Keywords: | free residual chlorine determination optimization |
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